Those who are ashamed of what they ought not to be ashamed; and are not ashamed of what they ought to be - such men, embracing erroneous views, enter the woeful path.

In four ways ... should one who flatters be understood as a foe in the guise of a friend: He approves of his friend's evil deeds, he disapproves his friend's good deeds, he praises him in his presence, he speaks ill of him in his absence.

If you want to know the past, look at your present. If you want to know the future, look at your present.

Make of yourself a light.

One moment, ten thousand years. Ten thousand years, one moment.

A person is ruined by taking the measure of other persons.

‎You only lose that which you cling to.