The person who did most to give to analysis the generality and symmetry which are now its pride, was also the person who made mechanics analytical; I mean Euler.

But with regard to the material world, we can at least go so far as this;-we can perceive that events are brought about, not by insulated interpositions of Divine power, exerted in each particular ease, but by the establishment of general laws.

Astronomy is ... the only progressive Science which the ancient world produced.

Gold and iron at the present day, as in ancient times, are the rulers of the world; and the great events in the world of mineral art are not the discovery of new substances, but of new and rich localities of old ones.

The object of science is knowledge; the objects of art are works. In art, truth is the means to an end; in science, it is the only end. Hence the practical arts are not to be classed among the sciences

Every failure is a step to success. Every detection of what is false directs us towards what is true: every trial exhausts some tempting form of error.

We need very much a name to describe a cultivator of science in general. I should incline to call him a scientist. [The first use of the word.]