I think, therefore I am.

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.

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. 

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

Dreams don't work unless you do.

There is no elevator to success, you have to take the stairs.

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

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

The road to success is like a staircase. If you want to succeed, double your failure rate

Procrastination makes easy things hard and hard things harder.

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

Time is your friend, impulse is your enemy.

No one starts out on top. You have to work your way up.

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