The man who goes alone can start today but he who travels with another must wait till that other is ready.

The advance of regret can be so gradual that it is impossible to say "yesterday I was happy, today I am not.

Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.

If there were in the world today any large number of people who desired their own happiness more than they desired the unhappiness of others, we could have a paradise in a few years.

Either you reach a higher point today or you exercise your strength in order to be able to climb higher tomorrow.

Each morning when I open my eyes I say to myself: I, not events, have the power to make me happy or unhappy today.