There are very many people who read simply to prevent themselves from thinking.

It is hardly to be believed how spiritual reflections when mixed with a little physics can hold people's attention and give them a livelier idea of God than do the often ill-applied examples of his wrath.

Ask yourself always: how can this be done better?

I cannot say whether things will get better if we change; what I can say is they must change if they are to get better.

Every condition of the soul has its own sign and expression...So you will see how hard it is to seem original without being so.

All mathematical laws which we find in Nature are always suspect to me, in spite of their beauty. They give me no pleasure. They are merely auxiliaries. At close range it is all not true.

Most men of education are more superstitious than they admit - nay, than they think.