Life without discipline is like a car with a drunk driver. That is, without discipline, one goes through life erratically, bumping here… — Melchor Lim Copy Share Image
Every mathematical discipline goes through three periods of development: the naive, the formal, and the critical. — David Hilbert Copy Share Image
...as far as self-discipline goes, it's still ultimately up to me how well I can push myself. Only I can do that.… — Sheryl Swoopes Copy Share Image
