It is a strong proof of men knowing most things before birth, that when mere children they grasp innumerable facts with such speed as to show that they are not then taking them in for the first time, but are remembering and recalling them.
Everyone has the obligation to ponder well his own specific traits of character. He must also regulate them adequately and not wonder whether someone else's traits might suit him better. The more definitely his own a man's character is, the better it fits him.
I never heard of an old man forgetting where he had buried his money. Old people remember what interests them: the dates fixed for their lawsuits, and the names of their debtors and creditors.