Book II

Marcus exhorts himself to stop delaying and recognize that life is finite, with limited time to address the soul's disturbances before death claims him.

One must perform all actions with gravity, natural affection, freedom, and justice while treating each action as if it were one's last, free from vanity and hypocrisy.

The soul must respect itself rather than deriving happiness from others' opinions, for life is fleeting and self-respect cannot be delayed indefinitely.

One should not be distracted by external events but should pursue learning and direct one's actions toward a definite purpose rather than wandering aimlessly.

Happiness requires that one observe one's own soul and guide it through reason; those who neglect this rational self-direction must necessarily be unhappy.

One must always remember what the universe is and what role one plays within it, recognizing that nothing can prevent one from acting in accordance with universal nature.

Sins committed through lust are graver than those through anger, because lust-driven sins show deliberate choice while anger-driven ones may arise from prior injury.

Death is not harmful if gods exist and provide providence; external things like honor, wealth, and health are indifferent because they cannot improve or worsen the person's moral character.

All worldly things quickly dissolve into matter and are forgotten; pleasurable, painful, or esteemed things are all vile and corruptible when considered truly.

One should recognize that honor comes from others' opinions and that death, when examined apart from fearful associations, is simply a work of nature and therefore neither evil nor fearful.

One should focus on maintaining one's inner spirit free from passion and vice rather than prying into others' minds; what proceeds from gods deserves respect while human actions deserve love and compassion.

Whether one lives long or briefly, one can only lose the present moment; past and future cannot be lost, and the current moment is equal for all, making length of life inconsequential.

Drawing on Monimus the Cynic, Marcus asserts that all is opinion, though one should apply the true and serious use of that understanding.

The soul harms itself through alienation from nature, aversion to others, being overcome by pleasure or pain, dissembling, and acting without rational purpose directed toward the common good.

Life is fleeting and all bodily and worldly things are transient; philosophy alone provides an anchor through preserving one's spirit, acting rationally without hypocrisy, and meeting death with acceptance.