Shoot for the moon and even if you miss you’ll land among the stars/

Failure to prepare = preparing to fail

You can have results or excuses, not both

There are no bad mistakes in maths, only discoveries.

I have not failed, I've just found 10,000 ways that won't work.

Life is full of opportunities. With every opportunity that is missed, another one is born.

There is no elevator to success, you have to take the stairs.

Focus on progress, not perfection. Practise a little bit every day - little and often  Slow and steady wins the race.

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

Time is your friend, impulse is your enemy.

Everything that happens was once a dream.

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

Procrastination is the thief of time and the enemy of success.

Nothing is impossible if you want it badly enough. Impossible = I'm possible.