SECTION 11. Give mature and repeated consideration to any plan before you proceed to carry it out; and even after you have thoroughly turned it over in your mind, make some concession to the incompetency of human judgment; for it may always happen that circumstances which cannot be investigated or foreseen, will come in and upset the whole of your calculation. This is a reflection that will always influence the negative side of the balance--a kind of warning to refrain from unnecessary action in matters of importance--_quieta non movere._ But having once made up your mind and begun your work, you must let it run its course and abide the result--not worry yourself by fresh reflections on what is already accomplished, or by a renewal of your scruples on the score of possible danger: free your mind from the subject altogether, and refuse to go into it again, secure in the thought that you gave it mature attention at the proper time. This is the same advice as is given by an Italian proverb--_legala bene e poi lascia la andare_--which Goethe has translated thus: See well to your girths, and then ride on boldly.[1] [Footnote 1: It may be observed, in passing, that a great many of the maxims which Goethe puts under the head of _Proverbial_, are translations from the Italian.] And if, notwithstanding that, you fail, it is because human affairs are the sport of chance and error. Socrates, the wisest of men, needed the warning voice of his good genius, or [Greek: daimonion], to enable him to do what was right in regard to his own personal affairs, or at any rate, to avoid mistakes; which argues that the human intellect is incompetent for the purpose. There is a saying--which is reported to have originated with one of the Popes--that when misfortune happens to us, the blame of it, at least in some degree, attaches to ourselves. If this is not true absolutely and in every instance, it is certainly true in the great majority of cases. It even looks as if this truth had a great deal to do with the effort people make as far as possible to conceal their misfortunes, and to put the best face they can upon them, for fear lest their misfortunes may show how much they are to blame. SECTION 12.