Let goodness go with the doing.

A wrongdoer is often a man who has left something undone, not always one who has done something.

How much time he saves who does not look to see what his neighbor says or does or thinks.

The passing minute is every man's equal possession but what has once gone by is not ours.

The greatest part of what we say and do is really unnecessary. If a man takes this to heart, he will have more leisure and less uneasiness.

For nowhere either with more quiet or more freedom from trouble does a man retire than into his own soul, particularly when he has within him such thoughts that by looking into them he is immediately in perfect tranquility; and I affirm that tranquility is nothing else than the good ordering of the mind.

Do not disturb yourself by picturing your life as a whole; do not assemble in your mind the many and varied troubles which have come to you in the past and will come again in the future, but ask yourself with regard to every present difficulty: 'What is there in this that is unbearable and beyond endurance?'