The only true wisdom is in knowing you know nothing.
The future belongs to those who believe in the beauty of their dreams.
The best time to plant a tree was 20 years ago. The second best time is now.
You must be the change you wish to see in the world.
It is during our darkest moments that we must focus to see the light.
Life is like riding a bicycle. To keep your balance, you must keep moving.
The only way to do great work is to love what you do.
In the end, it's not the years in your life that count. It's the life in your years.
The only limit to our realization of tomorrow will be our doubts of today.
In three words I can sum up everything I've learned about life: it goes on.
In the midst of winter, I found there was, within me, an invincible summer.
Life is what happens when you're busy making other plans.