Who was this Roman General/figure of authority who, on his deathbed, named these two regrets?

Question

In my undergrad I took a Roman History/Culture class and remember the professor mentioning someone who died naming two regrets:

1. He once told a secret to a woman
2. He once spent a day idle/doing nothing

The second of which I find very inspiring. I would like to know the identity of this man/read more about him.

Answer 1

Plutarch's Lives says this about Marcus Cato:

He would likewise say ... and that in his whole life he most repented of three things; one was, that he had trusted a secret to a woman; another, that he went by water when he might have gone by land; the third, that he had remained one whole day without doing any business of moment.