Pascal's Pensées

I spent a long time in the study of the abstract sciences, and was disheartened by the small number of fellow-students in them. When I commenced the study of man, I saw that these abstract sciences are not suited to man, and that I was wandering farther from my own state in examining them, than others in not knowing them. I pardoned their little knowledge; but I thought at least to find many companions in the study of man, and that it was the true study which is suited to him. I have been deceived; still fewer study it than geometry. It is only from the want of knowing how to study this that we seek the other studies. But is it not that even here is not the knowledge which man should have, and that for the purpose of happiness it is better for him not to know himself?