An expert is someone who knows some of the worst mistakes, which can be made, in a very narrow field.
Prediction is very difficult, especially about the future.
If anybody says he can think about quantum physics without getting giddy, that only shows he has not understood the first thing about them.
Technology has advanced more in the last thirty years than in the previous two thousand. The exponential increase in advancement will only continue. Anthropological Commentary The opposite of a trivial truth is false; the opposite of a great truth is also true.
Never express yourself more clearly than you are able to think.
The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.
There are trivial truths and the great truths. The opposite of a trivial truth is plainly false. The opposite of a great truth is also true.