Sure - Quotes
An optimist stays up until midnight to see the new year in. A pessimist stays up to make sure the old year leaves.
There is one thing worse than an absolutely loveless marriage. A marriage in which there is love, but on one side only; faith, but on one side only; devotion, but on one side only, and in which of the two hearts one is sure to be broken.
Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove it. No matter how many times the results of experiments agree with some theory, you can never be sure that the next time the result will not contradict the theory.