In praising or loving a child, we love and praise not that which is, but that which we hope for.

A mathematician is only perfect insofar as he is a perfect man, sensitive to the beauty of truth.

Tolerance should really be only a temporary attitude; it must lead to recognition. To tolerate means to offend.

And we went our separate ways without having understood each other. As in this world nobody understands the other easily.

Mankind? That is an abstraction. There have always been and always will be only individuals.

Some of our weaknesses are born in us, others are the result of education; it is a question which of the two gives us most trouble.

Seldom in the business and transactions of ordinary life, do we find the sympathy we want.