Success can never happen without the journey (struggle).

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

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

The journey of a thousand miles begins with one step. 

Success is the sum of small repeated efforts, day in and day out.

There are no bad mistakes in maths, only discoveries.

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

It is never too late to become what you might have been

Success is not final, failure is not fatal.  It is the courage to continue that counts.

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.

Do what you have always done and you will always be what you have always been

A hero is no braver than an ordinary man, but he is braver five minutes longer.

Time is your friend, impulse is your enemy.

99% of genius comes from hard work, the remaining 1% comes from innate talent

A book a day keeps the stupidity away.