"You have to work hard to get to the top, but you have to work even harder to stay there."
你必须努力才能到达顶峰,但你必须更加努力才能留在那里。
If you wish to succeed, you should use perdistence as your good friend, experiece as your reference, prudence as your brother and hope as your sentry.
Science should serve humanity, not the other way around.