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En/en/profession/266/en/authors Quotes (1129)

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Truth is born into this world only with pangs and tribulations, and every fresh truth is received unwillingly.
Alfred Russel Wallace
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I am decidedly of the opinion that in very many instances we can trace such a necessary connexion, especially among birds, and often with more complete success than in the case which I have here attempted to explain.
Alfred Russel Wallace
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If this is not done, future ages will certainly look back upon us as a people so immersed in the pursuit of wealth as to be blind to higher considerations.
Alfred Russel Wallace
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As well might it be said that, because we are ignorant of the laws by which metals are produced and trees developed, we cannot know anything of the origin of steamships and railways
Alfred Russel Wallace
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I hold with Henry George, that at the back of every great social evil will be found a great political wrong
Alfred Russel Wallace
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What we need are not prohibitory marriage laws, but a reformed society, an educated public opinion which will teach individual duty in these matters
Alfred Russel Wallace
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Civilisation has ever accompanied emigration and conquest - the conflict of opinion, of religion, or of race
Alfred Russel Wallace
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What birds can have their bills more peculiarly formed than the ibis, the spoonbill, and the heron?
Alfred Russel Wallace
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To say that mind is a product or function of protoplasm, or of its molecular changes, is to use words to which we can attach no clear conception
Alfred Russel Wallace
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I am thankful I can see much to admire in all religions.
Alfred Russel Wallace
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It has been generally the custom of writers on natural history to take the habits and instincts of animals as the fixed point, and to consider their structure and organization as specially adapted to be in accordance with them.
Alfred Russel Wallace
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Before being free, it is necessary to be just
Alexander von Humboldt
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Mere communion with nature, mere contact with the free air, exercise a soothing yet comforting and strengthening influence on the wearied mind, calm the storm of passion, and soften the heart when shaken by sorrow to its inmost depths.
Alexander von Humboldt
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At no other time has Nature concentrated such a wealth of valuable nourishment into such a small space as in the cocoa bean.
Alexander von Humboldt
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Cruelty to animals is one of the most significant vices of a low and ignoble people. Wherever one notices them, they constitute a sign of ignorance and brutality which cannot be painted over even by all the evidence of wealth and luxury.
Alexander von Humboldt
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Die gefhrlichste Weltanschauung ist die Weltanschauung derer, die die Welt nie angeschaut haben. (The most dangerous worldview is the worldview of those who have not viewed the world)
Alexander von Humboldt
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Governments which have a regard to the common interest are constituted in accordance with strict principles of justice, and are therefore true forms but those which regard only the interest of the rulers are all defective and perverted forms, for they are despotic, whereas a state is a community of freemen.
Aristotle
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These two rational faculties may be designated the Scientific Faculty and the Calculative Faculty respectively since calculation is the same as deliberation, and deliberation is never exercised about things that are invariable, so that the Calculative Faculty is a separate part of the rational half of the soul.
Aristotle
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Death alone will put a stop to my effort!
David Livingstone
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We scientists have fantasies of being uniquely qualified to make great discoveries. Alas, reality is cruel: most of us are replaceable. For the vast majority of scientific contributions, if scientist X hadn't achieved it that year, scientist Y would have achieved the same result or something very similar soon thereafter.
Jared Diamond
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As we gaze into the mirror it holds up for us, we too easily imagine that what we behold is Nature when in fact we see the reflection of our own unexamined longings and desires.
William Cronon
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It is not the possessions but the desires of mankind which require to be equalized.
Aristotle
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Human beings are curious by nature.
Aristotle
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Introspection and preserved writings give us far more insight into the ways of past humans than we have into the ways of past dinosaurs. For that reason, I'm optimistic that we can eventually arrive at convincing explanations for these broadest patterns of human history.
Jared Diamond
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