'When Everything Changes, Change Everything' by Neale Donald Walsch

If the problem can be solved why worry? If the problem cannot be solved worrying will do you no good - Shantideva

life changes faster than you think - Amy Tan

Life is a series of natural and spontaneous changes. Don't resist them - that only creates sorrow. Let reality be reality. Let things flow naturally forward in whatever way they like - Lao Tzu

It's amazing. Life changes very quickly, in a very positive way, if you let it - Lindsey Vonn

Just when I think I have learned the way to live, life changes - Hugh Prather

What's the book is all about:

The only thing constant in life is change. The changes in life are not going to stop as it's the law of nature. What can be changed is the way you deal with change and the way you are changed by change.