As pleasure grows in suffering,so frustration forms in contentment.
苦心中，常得悦心之趣；得意时，便生失意之悲。
今文解译
人在苦心追求一样东西的时候，常会有愉悦之情泛自心底。
人有所获而沾沾自喜的时候，失意的悲情往往会悄然而生。
EngIish TransIation
In the course of hard pursuit joys may often spring from the bottom of the heart;while at the time of contentment the sorrow of frustration may arise beyond expectation.