"黑发不知勤学早,白首方悔读书迟."用英文翻译这句话

If we don't study diligently when we are young, we will feel regretful, for no time to study, at the time when our hairs turn gray.

The young will never know the importance of learning should commence early in life, rather than regret when one grows old.

The black hair doesn't know study hard early, grey-haired and square regrets' studying is late

The black hair doesn't know study hard early, grey-haired and square regrets' studying is late