It might be a good idea if the various countries of the world would occasionally swap history books, just to see what other people are doing with the same set of facts.
Retirement, we understand, is great if you are busy, rich, and healthy. But then, under those circumstances, work is great too.
Do not believe a thing because you read it in a book! Do not believe a thing because another has said it so! Find out the truth for yourself.
Some idea of inflation comes from seeing a youngster get his first job at a salary you dreamed of as the culmination of your career.
Work is the means of living, but it is not living.
Economists report that a college education adds many thousands of dollars to a man's lifetime income - which he then spends sending his son to college.
It's never safe to be nostalgic about something until you're absolutely certain there's no chance of its coming back
Grief and constant anxiety kill nearly as many women as men die on the battlefield.
The wise individual doesn't get too attached to any of life's pleasures, knowing that wonderful science is hard at work proving it's bad for him.
The ideal Christmas gift is money, but the trouble is you can't charge it.
The most malignant of enemies is the lust which abides within.
Man is the animal that intends to shoot himself out into interplanetary space, after having given up on the problem of an efficient way to get himself five miles to work and back each day.
Where would the gardener be if there were no more weeds?
Deep in the sea are riches beyond compare, But if you seek safety, it is on the shore.
I've still got a lot to learn about Washington. Thursday, I accidentally spent some of my own money.
I love science. I hate supposition, superstition, exaggeration and falsified data. Show me the research, show me the results, show me the conclusions - and then show me some qualified peer reviews of all that.
One in whose head is conceit, Think not that he will ever listen to truth.
Custom governs the world; it is the tyrant of our feelings and our manners and rules the world with the hand of a despot.
Even if you feed the cow cocoa you will not get chocolate.
Pipe-smokers spend so much time cleaning, filling and fooling with their pipes, they don't have time to get into mischief.
Do not expect too much of the end of the world.
Let me look upward into the branches of the flowering oak and know that it grew great and strong because it grew slowly and well.
The true antidote to greed is contentment. If you have a strong sense of contentment, it doesn't matter whether you obtain the object of your desire or not. Either way, you are still content.
Muscles come and go; flab lasts.
Optimism, unaccompanied by personal effort, is merely a state of mind and not fruitful.
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