Nature does not reveal her mysteries once and for all.

Timendi causa est nescire - Ignorance is the cause of fear.

He who is brave is free.

It takes all of our life to learn how to live, and – something that may surprise you more – it takes just as long to learn how to die.

Pain is slight if opinion has added nothing to it; ... In thinking it slight, you will make it slight. Everything depends on opinion. It is according to opinion that we suffer. A man is as wretched as he has convinced himself that he is.

They laboriously do nothing.