The cucumber is bitter? Then throw it out. There are brambles in the path? Then go around. That's all you need to know.
Nothing befalls a man except what is in his nature to endure.
When jarred, unavoidably, by circumstance revert at once to yourself and don't lose the rhythm more than you can help. You'll have a better grasp of harmony if you keep going back to it.
Here is the rule to remember in the future, When anything tempts you to be bitter: not, 'This is a misfortune' but 'To bear this worthily is good fortune.'