「知其白，守其黑」
“Know the white, keep to the black”
—— 道德经知其白，守其黑：明白明亮一面，仍守住幽暗与含藏——道家的持守。可与见素抱朴并读。懂光之后，仍可守住必要的暗。今日：懂曝光规则后，仍可选择不把一切摊在光下。
Know the white, keep the black: understand the bright side, still guard the dark and the held-back—Daoist keeping. Pair with embrace the plain. Today: after learning exposure rules, you may still choose not to lay everything in light.