Everything that you can see in the world around you presents itself to your eyes only as an arrangement of patches of different colors.

It is a strange thing how little in general people know about the sky. It is the part of creation in which nature has done more for the sake of pleasing man.

God gives us always strength enough, and sense enough, for what He wants us to do; if we either tire ourselves or puzzle ourselves, it is our own fault.

In order that people may be happy in their work, these three things are needed: They must be fit for it. They must not do too much of it. And they must have a sense of success in it.

All of one's life is music, if one touches the notes rightly, and in time.

The secret of language is the secret of sympathy, and its full charm is possible only to the gentle

Science is the knowledge of constant things, not merely of passing events, and is properly less the knowledge of general laws than of existing facts.