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

Nothing is impossible if you want it badly enough. Impossible = I'm possible.

The easiest person to deceive is yourself.

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

Instead of finding reasons why you can't, find reasons why you can.

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

Don’t be afraid to work hard and find out how good you can really be.

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

You can have results or excuses, not both

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

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

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

Skills are built not born.

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

Focus on progress, not perfection. Practise a little bit every day - little and often  Slow and steady wins the race.