I think, therefore I am.

99% of genius comes from hard work, the remaining 1% comes from innate talent

It is never too late to become what you might have been

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

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

Time is your friend, impulse is your enemy.

The greatest enemy to human potential is your comfort zone

You can have results or excuses, not both

The greatest glory in loving lies not in never falling, but in rising every time we fall.

Instead of finding reasons why you can't, find reasons why you can.

You're not in competition with anyone but yourself. Outdo your past, not other people.

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.

Tough times never last, but tough people do.

We all have two lives. The second begins when we realise we only have one. 

If you want to succeed, double your failure rate.