Marcus Aurelius

It is not death that a man should fear, but he should fear never beginning to live.

Plato

We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.

Aristotale

We are what we repeatedly do. Excellence, then, is not an act, but a habit.

Socrates

The secret of change is to focus all of your energy, not on fighting the old, but on building the new.

Heraclitus

No man ever steps in the same river twice, for it's not the same river and he's not the same man.