It is the genus that gives the characters, and not the characters that make the genus.

If you do not know the names of things, the knowledge of them is lost, too.

It is not God, but people themselves who shorten their lives by not keeping physically fit.

In natural science the principles of truth ought to be confirmed by observation.

Nature does not proceed by leaps.

The plant kingdom covers the entire earth, offering our senses great pleasure and the delights of summer.

A professor can never better distinguish himself in his work than by encouraging a clever pupil, for the true discovers are among them, as comets amongst the stars.

Stones grow, plants grow, and live, animals grow live and feel.

Blessed be the Lord for the beauty of summer and spring, for the air, the water, the verdure, and the song of birds.

I demand of you, and of the whole world, that you show me a generic character... by which to distinguish between Man and Ape. I myself most assuredly know of none.

Nature's economy shall be the base for our own, for it is immutable, but ours is secondary. An economist without knowledge of nature is therefore like a physicist without knowledge of mathematics.

Yin and yang are the left and right hands of the Infinite — creator, destroyer, and reproducer of everything that exists.

Don’t listen to the ramblings of fools, ” he said, smiling grimly. “When it comes down to it, if they knew the truth, no one would want to live on this earth forever.

Occasionally I find a travel book that is both illuminating and entertaining, where vivid writing and research replace self-indulgence and sloppy prose.

The NFL, sadly, has a fatal environmental problem: It kills its workers.

It does not seem that the contradiction which exists between the aristocratic function of art and the democratic structure of modern society can ever be resolved.

I think there is beauty in everything.

A father is a man who expects his son to be as good a man as he meant to be, A father is someone who carries pictures where his money used to be.

Literature is the garden of wisdom.

The flute is a weird instrument, especially when played solo.

We're going to rebuild America with American workers and American tools.