When we build, let us think that we build forever.

The whole difference between a man of genius and other men, it has been said a thousand times, and most truly, is that the first remains in great part a child, seeing with the large eyes of children, in perpetual wonder, not conscious of much knowledge--conscious, rather of infinite ignorance, and yet infinite power; a fountain of eternal admiration, delight, and creative force within him meeting the ocean of visible and governable things around him.

Give a little love to a child, and you get a great deal back.

When you pay too much, you lose a little money - that is all. When you pay too little, you sometimes lose everything, because the thing you bought is incapable of doing the thing it was bought to do.

Science deals exclusively with things as they are in themselves.

The eye is continually influenced by what it cannot detect; nay, it is not going too far, to say that it is most influenced by what it detects least. Let the painter define, if he can, the variations of lines on which depend the change of expression in the human countenance.

There is large difference between indolent impatience of labor and intellectual impatience of delay, large difference between leaving things unfinished because we have more to do or because we are satisfied with what we have done.