It may be questioned whether anything can be conscious of its own flavor. Whether the musk-deer, or the civet-cat, or even a still more eloquently silent animal that might be mentioned, is aware of any personal peculiarity, may well be doubted. No man knows his own voice; many men do not know their own profiles. Every one remembers Carlyle's famous "Characteristics" article; allow for exaggerations, and there is a great deal in his doctrine of the self-unconsciousness of genius. It comes under the great law just stated. This incapacity of knowing its own traits is often found in the family as well as in the individual. So never mind what your cousins, brothers, sisters, uncles, aunts, and the rest, say about that fine poem you have written, but send it (postage-paid) to the editors, if there are any, of the "Atlantic,"--which, by the way, is not so called because it is A NOTION, as some dull wits wish they had said, but are too late. --Scientific knowledge, even in the most modest persons, has mingled with it a something which partakes of insolence. Absolute, peremptory facts are bullies, and those who keep company with them are apt to get a bullying habit of mind;--not of manners, perhaps; they may be soft and smooth, but the smile they carry has a quiet assertion in it, such as the Champion of the Heavy Weights, commonly the best-natured, but not the most diffident of men, wears upon what he very inelegantly calls his "mug." Take the man, for instance, who deals in the mathematical sciences. There is no elasticity in a mathematical fact; if you bring up against it, it never yields a hair's breadth; everything must go to pieces that comes in collision with it. What the mathematician knows being absolute, unconditional, incapable of suffering question, it should tend, in the nature of things, to breed a despotic way of thinking. So of those who deal with the palpable and often unmistakable facts of external nature; only in a less degree. Every probability--and most of our common, working beliefs are probabilities--is provided with BUFFERS at both ends, which break the force of opposite opinions clashing against it; but scientific certainty has no spring in it, no courtesy, no possibility of yielding. All this must react on the minds which handle these forms of truth.