It is never too late to turn an unproductive day into a productive one.

The bad news is time flies, the good new is that you're the pilot.

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

You cannot escape the responsibility of tomorrow by evading it today

Just stick with it, what seems hard now will one day be your warm up.

There are no bad mistakes in maths, only discoveries.

If you really want something you’ll find a way. If you don’t you’ll find an excuse.

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

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

Skills are built not born.

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

I think, therefore I am.

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

Never underestimate the importance of small steps. small steps = big changes. 

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