He is a veteran warrior who has overcome any difficulties.

He showed a splendid play in the final match.

This war is likely to become a war of attrition.

He became the champion of the mixed martial arts competition.

He is good at devising strategies for siege warfare.

He chose a stable job, saying 'a bird in the hand is worth two in the bush.'

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.