He who cures a disease may be the skillfullest, but he that prevents it is the safest physician

A stumble may prevent a fall

Then the business game is to make profits out of others, and to prevent others from making profits out of you.

His deepest fear was that its invention would inspire a deadly nuclear arms race between the West and the Soviet Union. To prevent this, he insisted, it was imperative that the Russians be told about the existence of the bomb project, and be assured that it was no threat to them.

Our notions about happiness entrap us. We forget that they are just ideas. Our idea of happiness can prevent us from actually being happy. We fail to see the opportunity for joy that is right in front of us when we are caught in a belief that happiness should take a particular form.

Freedom is not given to us by anyone; we have to cultivate it ourselves. It is a daily practice… No one can prevent you from being aware of each step you take or each breath in and breath out.

You can’t prevent the inevitable, but you can join the ship.

Our national determination to keep free of foreign wars and foreign entanglements cannot prevent us from feeling deep concern when ideals and principles that we have cherished are challenged

Justice… is a kind of compact not to harm or be harmed.

Never say that I have taken it, only that I have given it back.

Is God willing to prevent evil, but not able? Then he is not omnipotent. Is he able, but not willing? Then he is malevolent. Is he both able and willing? Then whence cometh evil? Is he neither able nor willing? Then why call him God?

When will our consciences grow so tender that we will act to prevent human misery rather than avenge it?

I don’t try to describe the future. I try to prevent it.

Whatever is destined not to happen will not happen, try as you may. Whatever is destined to happen will happen, do what you may to prevent it. This is certain. The best course, therefore, is to remain silent.

The crowns of kings do not prevent those who wear them from being tormented sometimes by violent headaches.

Truth has to appear only once, in one single mind, for it to be impossible for anything ever to prevent it from spreading universally and setting everything ablaze.

If you cry because the sun has gone out of your life, your tears will prevent you from seeing the stars.

You cannot prevent a major catastrophe, but you can build an organization that is battle-ready, where people trust one another. In military training, the first rule is to instill soldiers with trust in their officers – because without trust, they won’t fight.

I am thankful that in a troubled world no calamity can prevent the return of spring.

Experience teaches us that it is much easier to prevent an enemy from posting themselves than it is to dislodge them after they have got possession.

There is a natural greenhouse effect that contributes to warming. Greenhouse gases trap heat and thus warm the Earth because they prevent a significant proportion of infrared radiation from escaping into space.

Our most abundant energy source is coal. We have enough coal to last for 250 years, yet coal also prevents an environmental challenge.

With women who do not love us, as with the “dear departed,” the knowledge that there is no hope left does not prevent us from continuing to wait.