The really unhappy person is the one who leaves undone what they can do, and starts doing what they don't understand; no wonder they come to grief.

Instruction does much, but encouragement everything.

The artist has a twofold relation to nature; he is at once her master and her slave.

Let mental culture go on advancing, let the natural sciences progress in even greater extent and depth, and the human mind widen itself as much as it desires: beyond the elevation and moral culture of Christianity, as it shines forth in the Gospels, it will not go.

The most damaging prejudice consists of banning any kind of investigation of nature.

I've often heard it said a preacher might learn with a comedian for a teacher.

A lot of people do not care about your money until nearly penniless. They also do so with time