We learn nothing from history except that we learn nothing from history.

All the arts, which have a tendency to raise man in the scale of being, have a certain common band of union, and are connected, if I may be allowed to say so, by blood-relationship with one another.

Hatreds not vowed and concealed are to be feared more than those openly declared.

Rightly defined philosophy is simply the love of wisdom.

For no phase of life, whether public or private, whether in business or in the home, whether one is working on what concerns oneself alone or dealing with another, can be without its moral duty; on the discharge of such duties depends all that is morally right, and on their neglect all that is morally wrong in life.

Civilized people are taught by logic, barbarians, by necessity, communities by tradition; and the lesson inculcated even in wild beasts by nature itself. They learn that they have to defend their own bodies and persons lives from violence of any and every kind by all means within their power.

You will be as much value to others as you have been to yourself.