Frustrations come because we impose our illusions on reality.

Osho

What you do not want done to yourself, do not do to others.

Confucius

Empty your mind, be formless, shapeless, like water.

Bruce Lee

Only those who can accept their own annihilation can have the courage to be true individuals.

Alan Watts

My brain is only a receiver, in the Universe there is a core from which we obtain knowledge, strength and inspiration. I have not penetrated into the secrets of this core, but I know that it exists.

Nikola Tesla

Doubt is an uncomfortable condition, but certainty is a ridiculous one.

Voltaire