The heights by great men reached and kept were not attained by sudden flight, but they, while their companions slept, were toiling upward in the night.
How do I define success? Let me tell you, money's pretty nice. But having a lot of money does not automatically make you a successful person. What you want is money and meaning. You want your work to be meaningful, because meaning is what brings the real richness to your life.
There is no success without sacrifice. If you succeed without sacrifice it is because someone has suffered before you. If you sacrifice without success it is because someone will succeed after.
Nothing in the world is worth having or worth doing unless it means effort, pain, difficulty… I have never in my life envied a human being who led an easy life. I have envied a great many people who led difficult lives and led them well.