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

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

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

Lose an hour in the morning and you will spend all day looking for it.

You cannot start the next chapter of your life if you keep re-reading the last one.

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

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

The wise person knows that no answer is also an answer

Hope might be a good breakfast, but it makes a very poor dinner

Life is full of opportunities. With every opportunity that is missed, another one is born.

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

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

In order to become better than anybody else you must first become better than yourself.

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

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