The most common ego identifications have to do with possessions, the work you do, social status and recognition, knowledge and education, physical appearance, special abilities, relationships, person and family history, belief systems, and often also political, nationalistic, racial, religious, and other collective identifications. None of these is you.
Eckhart Tolle

Be at least as interested in what goes on inside you as what happens outside. If you get the inside right, the outside will fall into place.
Eckhart Tolle

Your mind is an instrument, a tool. It is there to be used for a specific task, and when the task is completed, you lay it down. As it is, I would say about 80 to 90 percent of most people's thinking is not only repetitive and useless, but because of its dysfunctional and often negative nature, much of it is also harmful. Observe your mind and you will find this to be true. It causes a serious leakage of vital energy.
Eckhart Tolle

Thinking, or more precisely identification with thinking, gives rise to and maintains the ego, which, in our Western society in particular, is out of control. It believes it is real and tries hard to maintain its supremacy. Negative states of mind, such as anger, resentment, fear, envy, and jealousy, are products of the ego.
Eckhart Tolle

To end the misery that has afflicted the human condition for thousands of years, you have to start with yourself and take responsibility for you inner state at any given moment. That means now.
Eckhart Tolle