No man needs sympathy because he has to work, because he has a burden to carry. Far and away the best prize that life offers is the chance to work hard at work worth doing.
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.
Practice does not make perfect. Perfect practice makes perfect.
Opportunity is missed by most people because it is dressed in overalls and looks like work.
The secret of success in life is for a man to be ready for his opportunity when it comes.
It's a terrible thing to look over your shoulder when you are trying to lead - and find no one there
By failing to prepare, you are preparing to fail.
Nothing will work unless you do.
If you don't have time to do it right, when will you have the time to do it over?
Always bear in mind that your own resolution to succeed is more important than any other.
Our fatigue is often caused not by work, but by worry, frustration and resentment
In every job that must be done, there is an element of fun. You find the fun and - SNAP - the job's a game!
As you start to walk out on the way, the way appears.
Only put off until tomorrow what you are willing to die having left undone
It is easier for a tutor to command than to teach.
Many people would no more think of entering journalism than the sewage business - which at least does us all some good.
To know what people really think, pay regard to what they do, rather than what they say.
Dad, you've done a lot of great things, but you're a very old man, and old people are useless.
If you think your teacher is tough, wait until you get a boss. He doesn't have tenure.
The production of too many useful things results in too many useless people.
No one ever is defeated until defeat has been accepted as a reality.