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

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

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.

No one starts out on top. You have to work your way up.

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

You can hire a tutor but you can't hire someone to practice for you.

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

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

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.

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

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

The greatest enemy to human potential is your comfort zone

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

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

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