Thunder over heaven: Great Strength. Superior people do not tread upon paths that do not accord with established order.
Great Strength: Righteous persistence brings reward.
羝羊觸藩， 不能退，不能遂， 无攸利，艱則吉。
A goat butts against a hedge. It cannot go backward, it cannot go forward. Nothing beneficial. If one notes the difficulty, this brings good fortune.
Giving up a goat too lightly. No regret.
貞吉悔亡， 藩決不羸， 壯于大輿之輹。
Perseverance brings good fortune. Remorse disappears. The hedge opens; there is no entanglement. Great power in the axle of a big cart.
小人用壯， 君子用罔，貞厲。 羝羊觸藩，羸其角。
Inferior people work through power. Superior people do not act this way. To continue is dangerous. A goat butts against a hedge & gets its horns entangled.
Righteous persistence brings good fortune.
Power in the toes. Pushing ahead leads to misfortune. This is true.