The perfect square lacks corners.
If you close your mind in judgements and traffic with desires, your heart will be troubled. If you keep your mind from judging and aren't led by the senses, your heart will find peace.
Without stepping out the door, you can know the world.
Free from desire, you realize the mystery.
Do not fear the aging of the body for it is the body's way of seeking the root.
The words of truth are always paradoxical. To the mind that is still, the whole universe surrenders.