produce, as it grows more common still, fruit which generations yet unborn shall bless. But as for that other reverence, which shuts its eyes and ears in pious awe--what is it but cowardice decked out in state robes, putting on the sacred Urim and Thummim, not that men may ask counsel of the Deity, but that they may not? What is it but cowardice, very pitiable when unmasked; and what is its child but ignorance as pitiable, which would be ludicrous were it not so injurious? If a man comes up to Nature as to a parrot or a monkey, with this prevailing thought in his head--Will it bite me?--will he not be pretty certain to make up his mind that it may bite him, and had therefore best be left alone? It is only the man of courage--few and far between--who will stand the chance of a first bite, in the hope of teaching the parrot to talk, or the monkey to fire off a gun. And it is only the man of courage--few and far between--who will stand the chance of a first bite from Nature, which may kill him for aught he knows--for her teeth, though clumsy, are very strong--in order that he may tame her and break her in to his use by the very same method by which that admirable inductive philosopher, Mr. Rarey, used to break in his horses; first, by not being afraid of them; and next, by trying to find out what they were thinking of. But after all, as with animals, so with Nature; cowardice is dangerous. The surest method of getting bitten by an animal is to be afraid of it; and the surest method of being injured by Nature is to be afraid of it. Only as far as we understand Nature are we safe from it; and those who in any age counsel mankind not to pry into the secrets of the universe, counsel them not to provide for their own life and well-being, or for their children after them. But how few there have been in any age who have not been afraid of Nature. How few have set themselves, like Rarey, to tame her by finding out what she is thinking of. The mass are glad to have the results of science, as they are to buy Mr. Rarey's horses after they are tamed: but for want of courage or of wit, they had rather leave the taming process to some one else. And therefore we may say that what knowledge of Nature we have--and we have very little--we owe to the courage of those men--and they have been very few--who have been inspired to face Nature boldly; and say--or, what is better, act as if they were saying--"I find something in me which I do not find in you; which gives me the hope that I can grow to understand you, though you may not understand me; that I may become your master, and not as now, you mine. And if not, I will know: or die in the search." It is to those men, the few and far between, in a very few ages and very few countries, who have thus risen in rebellion against Nature, and looked it in the face with an unquailing glance, that we owe what we call Physical Science.