You're not in competition with anyone but yourself. Outdo your past, not other people.

Tough times never last, but tough people do.

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

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

There are no bad mistakes in maths, only discoveries.

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

You cannot escape the responsibility of tomorrow by evading it today

You can be shown the path, but only you can make the first step.

Failure is not the opposite of success, it is part of the success.

Instead of finding reasons why you can't, find reasons why you can.

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

Success is a journey, not a destination.

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

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

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