It is no part of a physician's business to use either persuasion or compulsion upon the patients.

There is no such thing as committing adultery with the right woman, at the right time, and in the right way, for it is simply WRONG.

Whether if soul did not exist time would exist or not, is a question that may fairly be asked; for if there cannot be someone to count there cannot be anything that can be counted, so that evidently there cannot be number; for number is either what has been, or what can be, counted.

But since there is but one aim for the entire state, it follows that education must be one and the same for all, and that the responsibility for it must be a public one, not the private affair which it now is, each man looking after his own children and teaching them privately whatever private curriculum he thinks they ought to study.

The greatest virtues are those which are most useful to other persons.

The misanthrope, as an essentially solitary man, is not a man at all: he must be a beast or a god.

It is the mark of an educated mind to rest satisfied with the degree of precision which the nature of the subject admits and not to seek exactness where only an approximation is possible.