Science has to do with facts, art with phenomena. To science, phenomena are of use only as they lead to facts; and to art, facts are of use only as they lead to phenomena.

If some people really see angels where others see only empty space, let them paint the angels: only let not anybody else think they can paint an angel too, on any calculated principles of the angelic.

Life without industry is guilt, and industry without art is brutality.

I fear uniformity. You cannot manufacture great men any more than you can manufacture gold.

The distinguishing sign of slavery is to have a price, and to be bought for it.

Living without an aim, is like sailing without a compass.

There is no wealth but life. Life, including all its powers of love, of joy, and of admiration. That country is the richest which nourishes the greatest numbers of noble and happy human beings; that man is richest, who, having perfected the functions of his own life to the utmost, has also the widest helpful influence, both personal, and by means of his possessions, over the lives of others.