The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

Mathematics Is not a spectator sport. The only way to learn mathematics is to do mathematics.

Time is your friend, impulse is your enemy.

You'll never change your life until you change something you do daily. The secret to success and change in found in your daily routine.

Tough times never last, but tough people do.

The greatest mistake we make is living in constant fear that we will make one.

Just stick with it, what seems hard now will one day be your warm up.

Pure mathematics is in its way, the poetry of logical ideas.

It is never too late to turn an unproductive day into a productive one.

The master has failed more times than the beginner has even tried

Fall down seven times, stand up eight.

The journey of a thousand miles begins with one step. 

Dreams don't work unless you do.

I can is 100 times more important than IQ.

Hard work - a two way street where you get exactly what you put in.