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.

Against the censurers of brevity. - Something said briefly can be the fruit of much long thought: but the reader who is a novice in this field, and has as yet reflected on it not at all, sees in everything said briefly something embryonic, not without censuring the author for having served him up such immature and unripened fare.

Many find their heart when they have lost their head.

There would be no sunshine in society if the born flatterers, I mean the so-called amiable people, did not bring it in with them.

We attack not only to hurt someone, to defeat him, but perhaps also simply to become conscious of our own strength.

You must climb above yourself-up and beyond, until you have even your stars under you.

The good-they cannot create; they are always the beginning of the end.