As men's prayers are a disease of the will, so are their creeds a disease of the intellect.

I honor health as the first Muse.

Truth is the summit of being.

The true test of civilization is not the census, nor the size of cities, nor the crops - no, but the kind of man the country turns out.

Every man should let out all the length of all the reigns; should find or make a frank and healthy expression of what force and meaning is in him.

Astronomy to the selfish becomes astrology.

The first steps in Agriculture, Astronomy, Zoology, (those first steps which the farmer, the hunter, and the sailor take,) teach that nature's dice are always loaded; that in her heaps and rubbish are concealed sure and useful results.