The only exercise most people get is jumping to conclusions, running down their friends, sidestepping responsibility, and pushing their luck. — UNKNOWN

The only exercise I ever take is walking up hospital stairs to visit friends who've damaged themselves by taking exercise.

Although "jumping to conclusions" is an expression, rather than an activity, it is as dangerous as jumping off a cliff, jumping in front of a moving train, and jumping for joy. If you jump off a cliff, you have a very good chance of experiencing a painful landing unless there is something below you to cushion your fall, such as a body of water or an immense pile of tissue paper. If you jump in front of a moving train, you have a very good chance of experiencing a painful voyage unless you are wearing some sort of train-proof suit. And if you jump for joy, you have a very good chance of experiencing a painful bump on the head, unless you make sure you are standing someplace with very high ceilings, which joyous people rarely do. Clearly, the solution to anything involving jumping is either to make sure you are jumping to a safe place, or not to jump at all. - Lemony Snicket

Jumping to conclusions is efficient if the conclusions are likely to be correct and the costs of an occasional mistake acceptable. Jumping to conclusions is risky when the situation is unfamiliar, the stakes are high and there is no time to collect more information.

Those who jump to conclusions may go wrong.

The skepticism which fails to contribute to the ruin of our health is merely an intellectual exercise.

I take my only exercise acting as a pallbearer at the funerals of my friends who exercise regularly.

I can only help myself.

I only know what I believe.

Reading was the only amusement I allowed myself

The only thing I was fit for was to be a writer, and this notion rested solely on my suspicion that I would never be fit for real work, and that writing didn't require any.

My only hope lies in my despair.

We learn, when we learn, only from experience, and then we only learn from our mistakes. Our successes only serve to reinforce our superstitions.

I cannot teach anybody anything, I can only make them think.