The good we do today becomes the happiness of tomorrow.
To give up pretensions is as blessed a relief as to get them ratified.
Only necessity understood, and bondage to the highest is identical with true freedom.
The union of the mathematician with the poet, fervor with measure, passion with correctness, this surely is the ideal.
To neglect the wise sayings of great thinkers is to deny ourselves the truest education.
The worst thing that can happen to a good teacher is to get a bad conscience about her profession because she feels herself hopeless as a psychologist.