The cause of all power, as of all weakness, is within

“I have lived with several Zen masters -- all of them cats.” ― Eckhart Tolle, The Power of Now: A Guide to Spiritual Enlightenment

To be in the world and yet not of the world is the highest perfection

By curbing his tongue, a man gains possession of his mind

Where self is, Truth is not; where Truth is, self is not

Knowledge