You can make excuses or you can make progress. You choose.
When Kepler found his long-cherished belief did not agree with the most precise observation, he accepted the uncomfortable fact. He preferred the hard truth to his dearest illusions, that is the heart of science.
It only takes one mistake and nothing else you ever do will matter. No matter how hard you work or how smart you become, you’ll always be known for that one poor choice.
The Sneetches got really quite smart on that day. The day they decided that Sneetches are Sneetches. And no kind of Sneetch is the best on the beaches. That day, all the Sneetches forgot about stars and whether they had one, or not, upon thars.
A great attitude is not the result of success; success is the result of a great attitude.
He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.
Before you react, think. Before you spend, earn. Before you criticize, wait. Before you quit, try.
The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function.
Do not let anyone tell you what you can be. Do not let anyone tell you that you are not good enough or smart enough. Remember that nobody is better than you. Everybody puts on their pants one leg at a time.
We are what we repeatedly do. Excellence, then, is not an act, but a habit. How very little can be done under the spirit of fear.
Education means emancipation. It means light and liberty. It means the uplifting of the soul of man into the glorious light of truth, the light by which men can only be made free.
The people who get on in this world are the people who get up and look for the circumstances they want and if they can’t find them, make them.
There are two ways to get enough. One is to continue to accumulate more and more. The other is to desire less.
Sapere aude. Dare to be wise.
The intelligent man is never bored.
Time is our most valuable asset, yet we tend to waste it, kill it and spend it rather than invest it.
Don’t join an easy crowd; you won’t grow. Go where the expectations and the demands to perform are high.
Vocabulary enables us to interpret and to express. If you have a limited vocabulary, you will also have a limited vision and a limited future.
If you don’t change what you are doing today, all of your tomorrows will look like yesterday.
Indecision is the greatest thief of opportunity.