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

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

Everything you want is on the other side of fear

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

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

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.

We all make mistakes. What matters is how we choose to move forwards from them.

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

Tough times never last, but tough people do.

There are no bad mistakes in maths, only discoveries.

The greatest glory in loving lies not in never falling, but in rising every time we fall.

Knowledge is of no value unless you put it into practice.

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

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

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