A merefriend will agree with you, but a real friend will argue.

A lost battle is a battle one thinks one has lost.

We owealmost all our knowledge not to those who have agreed but to those who havediffered.

No doctor is a good doctor who has never been ill himself.

The difficultpart in an argument is not to defend one's opinion, but rather to know it.

Whenyou plant lettuce, if it does not grow well, you don't blame the lettuce. Youlook for reasons it is not doing well. It may need fertilizer, or more water,or less sun. You never blame the lettuce. Yet if we have problems with ourfriends or our family,

Itmatters not whether you win or lose; what matters is whether I win or lose.

It'swhen you're safe at home that you wish you were having an adventure. When you'rehaving an adventure you wish you were safe at home.

It is in our idleness, in our dreams, that submerged truth sometimes comes to top.

We have, I fear, confused power with greatness.

Man must not check reason by tradition, but must check tradition by reason.

Thereverse side also has a reverse side.