The self is nothing else than the sum of all the contents of consciousness.

All I can do is follow my instincts, because I'll never please everyone.

What makes the desert beautiful is that somewhere it hides a well.

The truth is rarely pure and never simple.

释义：同品德高尚的人相处，就会天天得到美好的教益；和行为不轨的人鬼混，就会天天产生邪恶的思想。提醒人们在选择交友的时候要慎重。