There are many things which we can afford to forget which it is yet well to learn.

On every stem, on every leaf,... and at the root of everything that grew, was a professional specialist in the shape of grub, caterpillar, aphis, or other expert, whose business it was to devour that particular part.

Society is always trying in some way to grind us down to a single flat surface.

Young feller, you will never appreciate the potentialities of the English language until you have heard a Southern mule driver search the soul of a mule.

Certitude is not the test of certainty.

I have always sought to guide the future-but it is very lonely sometimes trying to play God.

Certitude leads to violence. This is a proposition that has an easy application and a difficult one. The easy application is to ideoologues, dogmatists, and bullies--people who think that their rigtness justifies them in imposing on anyone who does not happen to suscribe to their particular ideology, dogma or notion of turf. If the conviction of rightness is powerful enough, resistance to it will be met, sooner or later by force. There are people like this in every sphere of life, and it is natural to feel that the world would be a better place without them!