It is a distinction to have many virtues, but a hard lot.

One must separate from anything that forces one to repeat No again and again.

Many a man fails as an original thinker simply because his memory it too good.

Without the errors involved in the assumptions of ethics, man would have remained an animal. Thus has he taken himself as something higher and imposed rigid laws upon himself.

Those who are bent on revolutionizing society may be divided into those who seek something for themselves thereby and those who seek something for their children and grandchildren.

I change too quickly: my today refutes my yesterday. When I ascend I often jump over steps, and no step forgives me that.

Ultimately, no one can extract from things, books included, more than he already knows.