To equal a predecessor, one must have twice they worth.

Always leave something to wish for; otherwise you will be miserable from your very happiness.

Know or listen to those who know.

To be at ease is better than to be at business. Nothing really belongs to us but time, which you have even if you have nothing else.

Keep the extent of your abilities unknown.The wise man does not allow his knowledge and abilities to be sounded to the bottom, if he desires to be honored at all. He allows you to know them but not to comprehend them. No one must know the extent of his abilities, lest he be disappointed. No one ever has an opportunity of fathoming him entirely. For guesses and doubts about the extent of his talents arouse more veneration than accurate knowledge of them, be they ever so great.

Never have a companion that casts you in the shade.

To find one real friend in a lifetime is good fortune; to keep him is a blessing.