Blaise Pascal (; French: [blɛz paskal]; 19 June 1623 – 19 August 1662) was a French mathematician, physicist, inventor, writer and Catholic theologian. He was a child prodigy who was educated by his father, a tax collector in Rouen. Pascal's earliest work was in the natural and applied sciences where he made important contributions to the study of fluids, and clarified the concepts of pressure and vacuum by generalising the work of Evangelista Torricelli. Pascal also wrote in defence of the scientific method.
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Penetrate deeply into the secret existence of anyone about you, even of the man or woman whom you count happiest, and you will come upon things they spend all their efforts to hide. Fair as the exterior may be, if you go in, you will find bare places, heaps of rubbish that can never be taken away, cold hearths, desolate altars, and windows veiled with cobwebs.