The way to screw up somebody's life is to give them what they want.
Every action has its pleasures and its price.
Our fatigue is often caused not by work, but by worry, frustration and resentment
The day science begins to study non-physical phenomena, it will make more progress in one decade than in all the previous centuries of its existence.
If you don't have time to do it right, when will you have the time to do it over?
Personally, I enjoy working about 18 hours a day. Besides the short catnaps I take each day, I average about four to five hours of sleep per night.
It is a cursed evil to any man to become as absorbed in any subject as I am in mine
There is but one dependable method of accumulating and legally holding riches, and that is by rendering useful service.
Art calls for complete mastery of techniques, developed by reflection within the soul.
At least with me, the match starts much, much earlier than the actual match.
Don't mistake activity with achievement.
Vision without execution is just hallucination.
Work does not kill a man, it is worry, irregularity and uncertainty that kill.
The majority of people who fail to accumulate money sufficient for their needs are, generally, easily influenced by the opinion of others.
When you know what you want, and want it bad enough, you will find a way to get it.
The leader of genius must have the ability to make different opponents appear as if they belonged to one category.
He who will not economize will have to agonize.
Great companies are built on great products.
The secret of success in life is for a man to be ready for his opportunity when it comes.
The secret of success is constancy to purpose.
No man can taste the fruits of autumn while he is delighting his scent with the flowers of spring.