It isn't work that makes you tired, it's your mental attitude.

It isn’t what you have or who you are or where you are or what you’re doing that makes you happy or unhappy. It’s what you think of it. Two people may in the same place doing the same thing, and yet one may be miserable and the other happy. Why? Because of a different mental attitude.

The only way on Earth to influence other people is to talk about what they want and show them how to get it.

When Theodore Roosevelt was in the White House, he confessed that if he could be right 75 percent of the time, he would reach the highest measure of his expectation. . . . If that was the highest rating that one of the most distinguished men of the twentieth century could hope to obtain, what about you and me?

Always avoid the acute angle.

Any fool can criticize, condemn and complain - and most fools do. But it takes character and self control to be understanding and forgiving.

If you want to gather honey, don't kick over the beehive.