Don't judge each day by the harvest you reap but by the seeds that you plant.
The only person you should try to be better than is the person you were yesterday.
It does not matter how slowly you go as long as you do not stop.
It's not the size of the dog in the fight, it's the size of the fight in the dog.
Strive not to be a success, but rather to be of value.
The future belongs to those who believe in the beauty of their dreams.
The only true wisdom is in knowing you know nothing.
The best time to plant a tree was 20 years ago. The second best time is now.
In three words I can sum up everything I've learned about life: it goes on.
Life is what happens when you're busy making other plans.
The only limit to our realization of tomorrow will be our doubts of today.