Anger dwells only in the bosom of fools.

When a man is sufficiently motivated, discipline will take care of itself.

For the moral attitudes of a people that is supported by religion need always aim at preserving and promoting the sanity and vitality of the community and its individuals, since otherwise this community is bound to perish. A people that were to honour falsehood, defamation, fraud, and murder would be unable, indeed, to subsist for very long.

It is best, it seems to me, to separate one's inner striving from one's trade as far as possible. It is not good when one's daily break is tied to God's special blessing.

Experience alone can decide on truth.

A brave man, whose only fault was being a woman.

Innovation is not the product of logical thought, even though the final product is tied to a logical structure.