The measure of a man is what he does with power....

He who is of calm and happy nature will hardly feel the pressure of age, but to him who is of an opposite disposition youth and age are equally a burden.

Wisdom alone is the science of other sciences.

There are two things a person should never be angry at, what they can help, and what they cannot.

Admiration of the proletariat, like that of dams, power stations, and aeroplanes, is part of the ideology of the machine age.

Those who improve with age embrace the power of personal growth and personal achievement and begin to replace youth with wisdom, innocence with understanding, and lack of purpose with self-actualization.

There are few things that we so unwillingly give up, even in advanced age, as the supposition that we still have the power of ingratiating ourselves with the fair sex.

If repression has indeed been the fundamental link between power, knowledge, and sexuality since the classical age, it stands to reason that we will not be able to free ourselves from it except at a considerable cost.