不是
Men are born ignorant, not stupid; they are made stupid by education.
The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd.
To be without some of the things you want is an indispensable part of happiness.
It is not a lack of love,but a lack of friendship that makes unhappy marriages.
The surest way to corrupt a youth is to instruct him to hold in higher esteem those who think alike than those who think differently.