To acquire knowledge, one must study; but to acquire wisdom, one must observe.
Success is achieved by developing our strengths, not by eliminating our weaknesses.
There's plenty of intelligence in the world, but the courage to do things differently is in short supply.
Being defeated is often a temporary condition. Giving up is what makes it permanent.
Be able to defend your arguments in a rational way. Otherwise, all you have is an opinion.
When you're in a good mood, bring up the past. When you're in a bad mood, stick to the present. And when you're not feeling emotional at all, it's time to talk about the future.
Be sure to expose yourself to criticism: A fine polish requires an abrasive.
An error becomes a mistake when we refuse to admit it.
You can't be wise without being intelligent, but you certainly can be intelligent without being wise.
A fool is someone whose pencil wears out before its eraser does.
The length of your education is less important than its breadth, and the length of your life is less important than its depth.
The lower our self-esteem, the more we're attracted to our opposite, and the higher our self-esteem, the more we are attracted to another like ourselves.
Stop asking for directions so much. Assuming that you're in a safe environment, pay attention and figure things out for yourself. Have the nerve to take a wrong turn now and then. You'll develop better working instincts and have more self-esteem too.
Success may be the ability to be happy with whatever we're stuck with.
If your head tells you one thing, and your heart tells you another, before you do anything, you should first decide whether you have a better head or a better heart.
The squeaky wheel may get the most oil, but it's also the first to be replaced.
Geometry is beautifully logical, and it teaches you how to think and prove that things are so, step by step by step. Proofs are excellent lessons in reasoning. Without logic and reasoning, you are dependent on jumping to conclusions or - worse - having empty opinions.
One of the few articles of clothing that a man won't try to remove from a woman is an apron.
Common sense comes from experience, and kids need to fail as well as succeed in order to learn it. It's difficult to develop common sense when you spend a lot of time in your room where nothing much happens.
Feeling is what you get for thinking the way you do.
A friend is someone who stays by your side all through the troubles he's caused you.
If achieving your potential requires favorable judgment by others, you are much less likely to succeed.
I think one of the problems [with raising intelligent children] is compulsory schooling...and that children are sitting there and they are taught and told what to believe. They are passive from the very beginning, and one must be very, very aggressive intellectually to have a high IQ [...] the child is taught. Right from the beginning, it's a passive process. He or she sits there, and they simply try to believe everything they're told.
I believe that one becomes stronger emotionally by taking life less personally. If your employer criticizes your report, don't take it personally. Instead, find out what's needed and fix it. If your girlfriend laughs at your tie, don't take it personally. Find another tie or find another girlfriend.
A good idea will keep you awake during the morning, but a great idea will keep you awake during the night.
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