strings: "But," you will say, "do not your causes apply to every one engaged in a like undertaking?" By no means. The particular causes, to a greater or less extent perhaps, do apply in all cases ; but the general one,—nervous debility, which is the key and conductor of all the particular ones, and without which they would be utterly harmless,—though it does pertain to you, does not pertain to one in a thousand. It is out of this that the painful difference between you and the mass of the world springs.