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clearly discerned from afar off these new tendencies, which will soon be irresistible, they would understand that, possessing education and freedom, men living in democratic ages cannot fail to improve the industrial part of science; and that henceforward all the efforts of the constituted authorities ought to be directed to support the highest branches of learning, and to foster the nobler passion for science itself In the present age the human mind must be coerced into theoretical studies; it runs of its own accord to practical applications; and, instead of perpetually referring it to the minute examination of secondary effects, it is well to divert it from them sometimes, in order to raise it up to the contemplation of primary causes.
Because the civilization of ancient Rome perished in consequence of the invasion of the Barbarians, we are perhaps too apt to think that civilization cannot perish in any other manner. If the light by which we are guided is ever extinguished, it will dwindle by degrees, and expire of itself. By dint of close adherence to mere applications, principles would be lost sight of; and when the principles were wholly forgotten, the methods derived from them would be ill pursued. New methods could no longer be invented, and men would continue to apply, without intelligence and without art, scientific processes no longer understood.
When Europeans first arrived in China, three hundred years ago, they found that almost all the arts had reached a certain degree of perfection there; and they were surprised that a people which had attained this point, should not have gone beyond it. At a later period they discovered some traces of the higher branches of science which were lost. The nation was absorbed in productive industry; the greater part of its scientific processes had been preserved, but science itself no longer existed there. This served to explain the strangely motionless state in which they found the minds of this people. The Chinese, in following the track of their forefathers, had forgotten the reasons by which the latter had been guided. They still used the formula, without asking for its meaning; they retained the instrument, but they no longer possessed the art of altering or renewing it. The Chinese, then, had lost the power of change; for them to improve was impossible. They were compelled, at all times and in all points, to imitate their predecessors, lest they should stray into utter darkness, by deviating for an instant from the path
