Eckhart Tolle is one of my favorite authors. I first discovered his teachings when I stumbled upon his book "Stillness Speaks" at the library and was deeply impacted by it. His words bring me back to earth, back to now.
Here are a few of my favorites:
"Some changes look negative on the surface but you will soon realize that space is being created in your life for something new to emerge."
"To love is to recognize yourself in another."
"Life will give you whatever experience is most helpful for the evolution of your consciousness. How do you know this is the experience you need? Because this is the experience you are having at the moment."
"Realize deeply that the present moment is all you have. Make the NOW the primary focus of your life."
"The primary cause of unhappiness is never the situation but your thoughts about it."
"Living up to an image that you have of yourself or that other people have of you is inauthentic living."