Never - Quotes
You never know till you try to reach them how accessible men are; but you must approach each man by the right door.
If you had to identify, in one word, the reason why the human race has not achieved, and never will achieve, its full potential, that word would be meetings.
Children have never been very good at listening to their elders, but they have never failed to imitate them.
If you live to be a hundred, I want to live to be a hundred minus one day, so I never have to live without you.
A teacher affects eternity; he can never tell where his influence stops.
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.
Evolution is all about processes that almost never happen. Every birth in every lineage is a potential speciation event, but speciation almost never happens, not once in a million births. Mutation in DNA almost never happens - not once in a trillion copyings - but evolution depends on it. Take the set of infrequent accidents - things that almost never happen - and sort them into the happy accidents, the neutral accidents, and the fatal accidents; amplify the effects of the happy accidents - which happens automatically when you have replication and competition - and you get evolution.