We cannot despair of humanity, since we ourselves are human beings.

Albert Einstein

Never let the future disturb you. You will meet it, if you have to, with the same weapons of reason which today arm you against the present.

Marcus Aurelius

Darkness within darkness. The gateway to all understanding.

Lao Tzu

I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.

Arthur C. Clarke

Ve al mundo y hazlo bien. Pero lo más importante es ir al mundo y hacer el bien.

Minor Myers Jur

Do not seek the truth, only cease to cherish your opinions.

Jianzhi Sengcan