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

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

We learn more from failure than we do from success.

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

Everything you want is on the other side of fear

Don’t hang your targets after you’re done shooting.

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

Failure to prepare = preparing to fail

Yesterday is history, tomorrow is a mystery, but today is a gift—that's why it's called 'the present

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

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

The wise person knows that no answer is also an answer

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.

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

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