I had no time is no excuse. 1 hour is 4% of your day and 1 minute is 0.34 % of your day.

Tomorrow is worth more than yesterday but less than today.

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

We are all maths people : step 1 - do maths and step 2 - be a person. 

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

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

The wise person knows that no answer is also an answer

Fall down seven times, stand up eight.

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

Don't fear failure, fear being in the same exact same place next year as you are now.

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

The master has failed more times than the beginner has even tried

If you want to succeed, double your failure rate.

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

Tough times never last, but tough people do.