When a natural discourse paints a passion or an effect, one feels within oneself the truth of what one reads, which was there before, although one did not know it. Hence one is inclined to love him who makes us feel it, for he has not shown us his own riches, but ours....such community of intellect that we have with him necessarily inclines the heart to love.

The Thoughts, Letters and Opuscules of Blaise Pascal (ed. 1859)