Physician, help yourself: thus help your patient too. Let this be his best help: that he may behold with his eyes the man who heals himself.

Science ... has no consideration for ultimate purposes, any more than Nature has, but just as the latter occasionally achieves things of the greatest suitableness without intending to do so, so also true science, as the imitator of nature in ideas, will occasionally and in many ways further the usefulness and welfare of man,-but also without intending to do so.

When one has finished building one's house, one suddenly realizes that in the process one has learned something that one really needed to know in the worst way - before one began.

The believer in magic and miracles reflects on how to impose a law on nature--: and, in brief, the religious cult is the outcome of this reflection.

And if a friend does you wrong, then say: "I forgive you what you have done to me; that you have done it to YOURSELF, however--how could I forgive that!

We are so fond of being out among nature, because it has no opinions about us.

Love is more afraid of change than destruction.