We don't inherit the ocean from our ancestors; we borrow it from our children.
A man lies the most when he lies to himself.
The only way to learn mathematics is to do mathematics.
The only limits that exist are the ones in your mind.
Life can only be understood backwards; but it must be lived forwards.
What is necessary to change a person is to change his awareness of himself.
The truth is not in the facts, but in the way we remember them.
The poet is the voice of the voiceless.