In the sky, there is no distinction of east and west; people create distinctions out of their own minds and then believe them to be true.

Difficulty is what wakes up the genius.

I am a man of fixed and unbending principles, the first of which is to be flexible at all times

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

You have not lived today - For someone who can never repay you.

When you have no winds, take to the oars.

Every single being, even those considered the least significant, has the same right to happiness and freedom.