"Un buen libro es aquel que te cambia, aunque sea un poco."
"We overestimate what we can do in one year and underestimate what we can do in ten."
我也许已经失去了我的心,但没有失去我的自控力。
A mathematician's work is never done; there are always more problems to solve.
I'm not afraid to be alone; I'm afraid of being lonely.
I’ve had to learn to fight all my life—got to learn to keep smiling. If you smile, things will work out.