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

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

If you really want something you’ll find a way. If you don’t you’ll find an excuse.

Tough times never last, but tough people do.

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

You'll never change your life until you change something you do daily. The secret to success and change in found in your daily routine.

He who has begun his task is half-way done. Have the courage to begin!

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

The journey of a thousand miles begins with one step. 

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

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

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

You cannot escape the responsibility of tomorrow by evading it today

Hard work beats talent when talent doesn't work hard.

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