He was behaving as if he was crazy.

He is doing a special exercise to strengthen his sternohyoid muscle.

He cautioned not to speak ill of others, saying, 'Illness enters by the mouth, and disaster does not come out of it.'

He is truly demonstrating talent that surpasses his master, just as the saying 'the student has surpassed his or her teacher' goes.

He was my student, but now he has become so proficient that it can be said 'the student has surpassed his teacher.'

When will this pain end?

He found forensic evidence.

He is a world-renowned ichthyologist.

Looking up at the Big Dipper, I feel at peace.

Life is a series of vicissitudes.