There is great wisdom in being able to realise that you don’t understand something before it goes too far.

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

The wise person knows that no answer is also an answer

You can have results or excuses, not both

We all have two lives. The second begins when we realise we only have one. 

Time is your friend, impulse is your enemy.

Run in the morning before your body figures out what you're doing

I think, therefore I am.

The easiest person to deceive is yourself.

The journey of a thousand miles begins with one step.

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

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

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

The temptation to quit will be the greatest when you are about to succeed

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