"There are no beautiful surfaces without a terrible depth."

"It is not a lack of love, but a lack of friendship that makes unhappy marriages."

"One must be a sea, to receive a polluted stream without becoming impure."

"There is always some madness in love. But there is also always some reason in madness."

"The tree that would grow to heaven must send its roots to hell."

"A thinker sees his own actions as experiments and questions."

"Invisible threads are the strongest ties."

"You must be ready to burn yourself in your own flame; how could you rise anew if you have not first become ashes?"

"In every real man a child is hidden that wants to play."

"The snake which cannot cast its skin has to die. As well the minds which are prevented from changing their opinions; they cease to be mind."

"I was in darkness, but I took three steps and found myself in paradise. The first step was a good thought, the second, a good word; and the third, a good deed."

"Sometimes people don't want to hear the truth because they don't want their illusions destroyed."

"The individual has always had to struggle to keep from being overwhelmed by the tribe."

"No price is too high to pay for the privilege of owning yourself."

"And if you gaze long enough into an abyss, the abyss will gaze back into you."