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

Shoot for the moon and even if you miss you’ll land among the stars/

When you make a mistake, take another chance. Only when you choose not to do so do you fail.

You can have results or excuses, not both

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

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

There are no bad mistakes in maths, only discoveries.

The greatest mistake we make is living in constant fear that we will make one.

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. 

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

Hard work always pays off - it is not a question of if you will get there, but WHEN you will get there

The greatest enemy to human potential is your comfort zone

You cannot escape the responsibility of tomorrow by evading it today

Failure to prepare = preparing to fail

Tomorrow is worth more than yesterday but less than today.