If you think your teacher is tough, wait until you get a boss. He doesn't have tenure.
Talent hits a target no one else can hit; Genius hits a target no one else can see.
I don't believe people die from hard work. They die from stress and worry and fear -- the negative emotions. Those are the killers, not hard work. The fact is, in our society today, most people don't understand what hard work is all about.
Tell the audience what you're going to say, say it; then tell them what you've said.
Without a sense of urgency, desire loses its value.
There is nothing impossible to him who will try.
Effective communication is 20% what you know and 80% how you feel about what you know.
If it's me against 48, I feel sorry for the 48.
Any fact facing us is not as important as our attitude toward it, for that determines our success or failure
To those whom much is given, much is expected.
I do know that when I am 60, I should be attempting to achieve different personal goals than those which had priority at age 20.
You don't have to be great to start, but you have to start to be great
What one has to do usually can be done.
Good actions give strength to ourselves and inspire good actions in others.
If you are five minutes early, you are already ten minutes late.
Practice does not make perfect. Perfect practice makes perfect.
Of all the things I've done, the most vital is coordinating those who work with me and aiming their efforts at a certain goal
The only 'break' anyone can afford to rely upon is a self-made 'break'.
The production of too many useful things results in too many useless people.
Change yourself and your work will seem different.
If you wish success in life, make perseverance your bosom friend, experience your wise counselor, caution your elder brother and hope your guardian genius.