I like poems you can tack all over with a hammer and there are no hollow places.
That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.
Necessity is the mother of invention.
The task of a writer is not to solve the problem but to state the problem correctly.
Patience is a virtue, and I'm learning patience. It's a tough lesson.
Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.
The real solution lies in a world in which charity will have become unnecessary.
All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
Knowing others is wisdom, knowing yourself is Enlightenment.
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
Reading without reflecting is like eating without digesting.
The ability to observe without evaluating is the highest form of intelligence.
The man who does not read good books has no advantage over the man who can't read them.
If you can't explain it simply, you don't understand it well enough.
Most people have never learned that one of the main aims in life is to enjoy it.
A child educated only at school is an uneducated child.
Many much-learned men have no intelligence.
You can never be overdressed or overeducated.
There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.
God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.