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.

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

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

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

You can hire a tutor but you can't hire someone to practice for you.

Time is your friend, impulse is your enemy.

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

The temptation to quit will be the greatest when you are about to succeed

The road to success is like a staircase. If you want to succeed, double your failure rate

Fall down seven times, stand up eight.

The journey of a thousand miles begins with one step. 

Never underestimate the importance of small steps. small steps = big changes. 

I think, therefore I am.

You cannot escape the responsibility of tomorrow by evading it today

I can is 100 times more important than IQ.