True happiness arises, in the first place, from the enjoyment of one's self, and in the next, from the friendship and conversation of a few select companions.
Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.
我像街上的孩子一样玩得很开心。当我不再享受它的那一天到来时,我将离开足球。
Time is a concept that is derived from the way we perceive change.