Wise people are still and tranquil. This is not because they see ay value in being still and tranquil; it is simply that wisdom induces this state. No one can perturb them. Even if every livin being gathered around a truly wise person, and shouted and screamed, the wise person would remain calm. When it is still, water gives such a perfect reflection that you can even see your own eyebrows within it. When water is still, the carpenter can set his level perfectly by it. If still water offers such perfection, think what a still soul can offer! Heaven and earth are reflected in it; it is a mirror of all life. In its lack of movement it reflects all movement. In its inaction it reflects all action. By going notwhere it reflects the birds flying across the sky form one continent to another.
Chuang Tzu, The Book of Chuang Tzu: 13