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

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

Success can never happen without the journey (struggle).

Tomorrow is worth more than yesterday but less than today.

Success is not final, failure is not fatal.  It is the courage to continue that counts.

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

Do what you have always done and you will always be what you have always been

We learn more from failure than we do from success.

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

Lose an hour in the morning and you will spend all day looking for it.

Never let a dark chapter make you forget that better days are ahead of you. Your story is far from over.

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

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

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

Your limitation - its only your imagination.