Mathematics Is not a spectator sport. The only way to learn mathematics is to do mathematics.

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

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

FAIL - First Attempt In Learning

There are no bad mistakes in maths, only discoveries.

Do Not Be Afraid To Make Mistakes. Each mistake teaches us something.

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

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

It always seems impossible until it's done.

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

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

In order to become better than anybody else you must first become better than yourself.

1.00³⁶⁵=1 and 1.01³⁶⁵=37.7. Doing nothing at all versus small steps at a time. 

Don’t compare yourself to others. Compare yourself to the person you were yesterday.

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