Understand in about 5 minutes
Pascal's unfinished defence of Christianity reads the human condition as a knot of greatness and misery, and argues that reason alone cannot reach the God the heart longs for.
Idea map
Mental models
Hold weakness and dignity together: you are easily destroyed, yet noble because you can understand your own condition.
It steadies self-knowledge between despair and pride by refusing to deny either half of the human state.
When proof is impossible but you must act, weigh the size of the possible gain and loss, not just the odds.
It offers a way to choose responsibly about questions reason cannot settle by demonstration alone.
Distinguish what the intellect proves by principle and demonstration from what the heart grasps directly.
It keeps you from demanding proof where it cannot be had, and from dismissing what reason cannot reach.
Summary
The Pensées are not a finished book. They are the scattered notes Pascal left toward a defence of the Christian religion, gathered and published after his death in 1670. The fragments are uneven in length and polish, but a single design runs through them: to move a worldly, indifferent reader from contempt for religion toward the search for God.
Pascal begins with the human condition. He paints man as caught among infinities, lost and uncertain, unable to know with finality either himself or his place. Diversion lets people avoid thinking of death and misery, yet this consolation, he says, is itself the deepest of miseries. This is the misery of man without God, the corruption that nature itself reveals.
Yet the same creature is great. Man is but a reed, the most feeble thing in nature, but a thinking reed; though the universe can crush him, he is nobler than what kills him because he knows that he dies. For Pascal all our dignity consists in thought, and to think well is the principle of morality.
Because reason cannot reach God by proof, Pascal turns to the wager. Since we cannot avoid betting on whether God exists, he argues, the prudent stake is on God, for the possible gain is infinite and the loss finite. He couples this with the means of belief: reason, custom, and inspiration working together.
Throughout, Pascal distinguishes the order of the heart from the order of the intellect. The heart has its reasons that reason does not know, and its own way of grasping first principles that demonstration cannot supply. The work ends unfinished, but its aim is plain: to show religion not contrary to reason, then venerable and lovable, and finally true.
Key concepts
Selected Quotes
Man is but a reed, the most feeble thing in nature; but he is a thinking reed.
All our dignity consists, then, in thought. By it we must elevate ourselves, and not by space and time which we cannot fill.
The heart has its reasons, which reason does not know.
Source
Source text: Project Gutenberg edition of Pensées by Blaise Pascal.
HTML text: https://www.gutenberg.org/cache/epub/18269/pg18269.txt
Project Gutenberg states that this ebook is for use at no cost with almost no restrictions in the United States and most other parts of the world, subject to local law.
Assembled from Pascal's notes and first published posthumously in 1670; the Project Gutenberg edition uses W. F. Trotter's translation, with an introduction by T. S. Eliot.