By failing to prepare, you are preparing to fail.
One of the main weaknesses of mankind is the average man's familiarity with the word 'impossible'.
You can observe a lot just by watching.
The whole secret of a successful life is to find out what is one's destiny to do, and then do it.
You don't get paid for the hour. You get paid for the value you bring to the hour.
One can have no smaller or greater mastery than mastery of oneself.
Thought, backed by strong desire, has a tendency to transmute itself into its physical equivalent.
Many people would no more think of entering journalism than the sewage business - which at least does us all some good.
Don't mistake activity with achievement.
The secret of success in life is for a man to be ready for his opportunity when it comes.
The best of artists has no conception that the marble alone does not contain within itself.
Be interesting, be enthusiastic... and don't talk too much.
The destination of the seekerů depends on the road he takes.
It is easier for a tutor to command than to teach.
It is hard to fail, but it is worse never to have tried to succeed.
Eighty percent of success is showing up.
One must be sane to think clearly, but one can think deeply and be quite insane.
Don't ever promise more than you can deliver, but always deliver more than you promise.
Success means we go to sleep at night knowing that our talents and ablities were used in a way that served others.
Success is going from failure to failure without loss of enthusiasm.
I do not like to repeat successes, I like to go on to other things.