are stupid and limited. How explain that? I will tell you: in consequence of their limitation they take immediate and secondary causes for primary ones, and in that way persuade themselves more quickly and easily than other people do that they have found an infallible foundation for their activity, and their minds are at ease and you know that is the chief thing. To begin to act, you know, you must first have your mind completely at ease and no trace of doubt left in it.

Why, how am I, for example, to set my mind at rest? Where are the primary causes on which I am to build? Where are my foundations? Where am I to get them from? I exercise myself in reflection, and consequently with me every primary cause at once draws after itself another still more primary, and so on to infinity. That is just the essence of every sort of