Scientist quotes

It is the indispensible duty of those, who maintain for themselves the rights of human nature, and who possess the obligations of Christianity, to extend their power and influence to the relief of every part of the human race from whatever burden or oppression they may unjustly labor under.

Life is pleasant. Death is peaceful. It's the transition that's troublesome.

A true conservationist is a man who knows that the world is not given by his fathers, but borrowed from his children.

Rough diamonds may sometimes be mistaken for worthless pebbles.

The colour of the skin is in no way connected with strength of the mind or intellectual powers.

The purpose of anthropology is to make the world safe for human differences.

I am not a philosopher.

I earnestly wish them all imaginable success; in the first place that they may not, by the unseasonable obscurity of a cloudy sky, be deprived of this most desirable sight; and then, that having ascertained with more exactness the magnitudes of the planetary orbits, it may redound to their eternal fame and glory.

This sight... is by far the noblest astronomy affords.

A small group of thoughtful people could change the world. Indeed, it's the only thing that ever has.