Intimates are predestined.

The capacity of women to make unsuitable marriages must be considered as the cornerstone of society.

There are two things that seem to be at the bottom of our constitutions; one is a continual tendency towards politics; the other is family pride; and it is strange how these two feelings run through all of us.

At the utmost, the active-minded young man should ask of his teacher only mastery of his tools. The young man himself, the subject of education, is a certain form of energy; the object to be gained is economy of his force; the training is partly the clearing away of obstacles, partly the direct application of effort. Once acquired, the tools and models may be thrown away.

Chaos breeds life; Order creates habit.

To my fancy, one looks back on life, it has only two responsibilities, which include all the others: one is the bringing of new life into existence; the other, educating it after it is brought in. All betrayals of trust result from these original sins.

Mathematicians practice absolute freedom.