| Only knowledge that is used, sticks in your mind. |
| Do the hard jobs first. The easy jobs will take care of themselves. |
| If you can't sleep, then get up and do something instead of lying there worrying. It's the worry that gets you, not the lack of sleep. |
| Winning friends begins with friendliness. |
| Criticism is dangerous, because it wounds a person’s precious pride, hurt his sense of importance and arouses resentment. |
| Remember, today is the tomorrow you worried about yesterday. |
| Big shots are only little shots who kept on shooting. |
| It isn’t what you have, or who you are, or where you are, or what you are doing that makes you happy or unhappy. It is what you think about. |
| Don’t be afraid of enemies who attack you. Be afraid of the friends who flatter you. |
| Never before, since the beginning of time, has there ever been anybody exactly like you; and never again throughout all the ages to come will there ever be anybody exactly like you again. |
| There are four ways, and only four ways, in which we have contact with the world. We are evaluated and classified by these four contacts: what we do, how we look, what we say, and how we say it. |
| Keep your mind open to change all the time. Welcome it. Court it. It is only by examining and reexamining your opinions and ideas that you can progress. |
| You can make more friends in two months by becoming interested in other people than you can in two years by trying to get other people interested in you. |
