We should hope for the best, but prepare for the worst. The worst result is that we can't get out of the world alive.

Someday I hope to have a whole complex of caves.

If at first you don't succeed, try, try, again. If it still doesn't work, redefine success.

All you need in this life is ignorance and confidence; then success is sure.

is full of ups and downs, especially when you're an elevator operator.

Life is a sum of all your choices.

Life is like an onion: you peel off（脱掉） layer after layer and then you find there is nothing in it.

Life is like surfing, you might catch a good wave and have a fun ride, but watch out for those sharks.

Don't take life too seriously - you won't get out alive. 

When life throws you stones, throw them back!