What is the seal of liberation? No longer being ashamed in front of oneself.

Friedrich Nietzsche

There are three things extremely hard: steel, a diamond, and to know one's self.

Benjamin Franklin

The first and greatest victory is to conquer self.

Plato

And as long as you're subject to birth and death, you'll never attain enlightenment.

Bodhidharma

The ego relies on the familiar. It is reluctant to experience the unknown, which is they very essence of life.

Deepak Chopra

The beautiful journey of today can only begin when we learn to let go of yesterday.

Steve Maraboli