Each day is an opportunity to improve. Aim to be that little bit better than yesterday and better tomorrow than today.

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

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.

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

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

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

I think, therefore I am.

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

If you want to succeed, double your failure rate.

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

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

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

It always seems impossible until it's done.

The journey of a thousand miles begins with one step.

Your attitude is everything. Pick a good one.