Few things are impossible to diligence and skill. Great works are performed not by strength, but perseverance.
The world does not pay men for that which they 'know'. It pays them for what they do, or induce others to do.
Old Professors never die, they just lose their faculties.
It had long since come to my attention that people of accomplishment rarely sat back and let things happen to them. They went out and happened to things.
For it is commonly said: accomplished labours are pleasant.
Without a humble but reasonable confidence in your own powers you cannot be successful or happy.
No tears in the writer, no tears in the reader. No surprise in the writer, no surprise in the reader.
The best way to destroy an enemy is to make him a friend.
Real success can only come if there is a change in our societies and in our economics and in our politics.
Do one thing at a time, and while doing it put your whole soul into it to the exclusion of all else.
Don't be afraid to give your best to what seemingly are small jobs. Every time you conquer one it makes you that much stronger. If you do the little jobs well, the big ones will tend to take care of themselves.
Innovation distinguishes between a leader and a follower.
Only put off until tomorrow what you are willing to die having left undone
The majority of people who fail to accumulate money sufficient for their needs are, generally, easily influenced by the opinion of others.
One of the main weaknesses of mankind is the average man's familiarity with the word 'impossible'.
Whenever you are asked if you can do a job, tell 'em, 'Certainly I can!' Then get busy and find out how to do it.
I never did a day's work in my life. It was all fun.
Four things for success: work and pray, think and believe.
The only 'break' anyone can afford to rely upon is a self-made 'break'.
It is the set of the sails, not the direction of the wind that determines which way we will go.
Genius is eternal patience.