Author of quotes: John Calvin Coolidge

Never go to meet trouble. Sit quiet, and nine out of ten troubles just will not come to you.

I never had trouble with what I said.

Woman: Mr. Coolidge, I made a bet with his friend, who said I won't be able to draw out of you more than a couple of words.
Coolidge: You lose.

The slogan "don't give up" was decided, decides and always will solve any human problem.

Nothing in the world can replace persistence. Will not replace talent - nothing usually talented loser. Will not replace the genius of the unrecognized genius is almost proverbial. Will not replace education - the world is full of educated beggars. Omnipotent it is only perseverance and determination. The motto of stand your ground are always permitted and will solve the problems of the human race.
(Keep pressing on: nothing in the world can replace perseverance. It will not replace talent - nothing usually talented losers. It will not replace the genius - unrealized genius has become a byword. It will not replace a good education - the world is full of educated derelicts. The Almighty only perseverance and persistence.)