Anyone who has no need of anybody but himself is either a beast or a God.
Learning is not child's play; we cannot learn without pain.
We must be neither cowardly nor rash but courageous.
To love someone is to identify with them.
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.
Fine friendship requires duration rather than fitful intensity.