Moreover, in the experimental sciences, the scientific fraternity must test a new theory to destruction, if possible.
In practice we, in the world, must do business with each other.
Every wave, regardless of how high and forceful it crests, must eventually collapse within itself.
I have a hard time getting past the day without the nap, so the nap is a must.
It took me a year to really learn the American lingo. I really feel for people who are coming here and don't speak English at all. It must be hell.
And I've always worked on the principle that if it interests me enough to write about it, then it must interest a lot of other people.
People think I must have been turning cartwheels on the night I sealed the movie deal - which was only two days after sealing the book deal - but I was really quite terrified.
They that will not apply new remedies must expect new evils.
The Japanese say, If the flower is to be beautiful, it must be cultivated.
People must have righteous principals in the first, and then they will not fail to perform virtuous actions.
If we truly understand, remember, and love the people of Indonesia, let us accept this principle of social justice, that is, not only political equality, but we must create equality in the economic field, too, which means the best possible well-being.
The poet must decide not to impose his feelings in order to write without sentimentality.
Which is why we cannot say of the purloined letter that, like other objects, it must be or not be in a particular place but that unlike them it will be and not be where it is, wherever it goes.
It often happens that I wake up at night and begin to think about a serious problem and decide I must tell the Pope about it. Then I wake up completely and remember that I am the Pope.
This self-love is the instrument of our preservation; it resembles the provision for the perpetuity of mankind: it is necessary, it is dear to us, it gives us pleasure, and we must conceal it.
It takes a great deal of character strength to apologize quickly out of one's heart rather than out of pity. A person must possess himself and have a deep sense of security in fundamental principles and values in order to genuinely apologize.
Democracy is never a thing done. Democracy is always something that a nation must be doing. What is necessary now is one thing and one thing only that democracy become again democracy in action, not democracy accomplished and piled up in goods and gold.
It must be a terrible pressure to have to go to the office.
All very successful commanders are prima donnas and must be so treated.
You must do the things you think you cannot do.
As artists, we must not go down to the level of the masa; we should bring them up, intellectualize our languages, create classics out of our folk arts. We can do this if we are true to our roots and strive for excellence.
The global response to global terrorism must not endanger fundamental human rights and freedoms.
The task we must set for ourselves is not to feel secure, but to be able to tolerate insecurity.
Love doesn't grow on trees like apples in Eden - it's something you have to make. And you must use your imagination too.
Research and development needs permanent tax credits to build the technology that spurs our growth. But no government programs alone can get America's students to study more science and math; parents must push and help their children to meet this goal.
I don't wait for moods. You accomplish nothing if you do that. Your mind must know it has got to get down to work.
One of the things that all authors of fiction must learn to judge is whether - and in what detail - to describe the face of a character.
Youth must go ahead and prosper. These young painters are all very talented people, but they all paint frescoes.
The only hard-and-fast rules a Perot must operate under are getting a sound education; being honest and ethical in our business dealings; treating the people who work for us with respect and dignity; and, finally, a Perot cannot be afraid to take risks when appropriate.
The country of the Two Holy Places has in our religion a peculiarity of its own over the other Muslim countries. In our religion, it is not permissible for any non-Muslim to stay in our country. Therefore, even though American civilians are not targeted in our plan, they must leave.
He who must expend his life to prolong life cannot enjoy it, and he who is still seeking for his life does not have it and can as little enjoy it.
Leaders are not dogmatic. They are principled and know that change is never easy, but when it's necessary, they must lead.
Fear is not in the habit of speaking truth; when perfect sincerity is expected, perfect freedom must be allowed; nor has anyone who is apt to be angry when he hears the truth any cause to wonder that he does not hear it.
I have said it many times: the policy of exclusion and the policy of marginalization must end in Iraq.
The worst thing you can do is censor yourself as the pencil hits the paper. You must not edit until you get it all on paper. If you can put everything down, stream-of-consciousness, you'll do yourself a service.
There comes a time in every man's life when he must make way for an older man.
