Renaissance/Early Modern

Blaise Pascal

1623–1662

When we act on an uncertainty, we act reasonably; for we ought to work for an uncertainty according to the doctrine of chance.
Pensées, §234

Blaise Pascal was a French mathematician and physicist who turned, after a religious conversion, to the defense of Christian faith. The Pensees, fragments of an unfinished apology, set the God of Abraham against the abstract God of the philosophers. Reason has its office. It cannot settle what matters most. The heart has its reasons. The wager shows that one cannot avoid living as if God is or is not. Christianity, he holds, alone explains both human greatness and wretchedness. Later apologetics that refuse pure rationalism and pure fideism still work in his register.

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