Under a government which imprisons any unjustly the true place for a just man is also a prison.

True happiness... is not attained through self-gratification, but through fidelity to a worthy purpose.

True happiness ... is not attained through self-gratification but through fidelity to a worthy purpose.

To know that we know what we know and that we do not know what we do not know that is true knowledge.

To enjoy a thing exclusively is commonly to exlcude yourself from the true enjoyment of it.

The true spirit of delight the exultation the sense of being more than Man which is the touchstone of the highest excellence is to be found in mathematics as surely as in poetry.

The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.