"All human knowledge begins with intuitions, proceeds..." - Quote by Immanuel Kant

“Act in such a way that you will be worthy of being happy.”

“It is by his activities and not by enjoyment that man feels he is alive. In idleness we not only feel that life is fleeting, but we also feel lifeless.”

“May you live your life as if the maxim of your actions were to become universal law.”

“What's a book? Everything or nothing. The eye that sees it all.”

“He that breaks a thing to find out what it is has left the path of wisdom.”

“I do a lot of reading, a lot of studying. I ask questions, I'll go out, travel these countries, I'll watch how their people live, and I learn.”

“Love does not analyze its object.”

“The best of seers is he who guesses well.”

“I didn't arrive at my understanding of the fundamental laws of the universe through my rational mind.”