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

99% of failures come from people who have the habit of making excuses.

Whenever you find yourself doubting how far you can go, just remember how far you have come.

He who has begun his task is half-way done. Have the courage to begin!

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

Practice makes comfort. Expand your experiences regularly so every stretch won't feel like your first.

Your limitation - its only your imagination.

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

The gift of imperfection - let go of who you think you're supposed to be and embrace who you are.

It always seems impossible until it's done.

I think, therefore I am.

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

There are no shortcuts to any place worth going.

Success is the sum of small repeated efforts, day in and day out.

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