What one man can think, another man can do.

So is man's heart. The desire to perform a work which will endure, which will survive him, is the origin of his superiority over all other living creatures here below. It is this which has established his dominion, and this it is which justifies it, over all the world.

[we see that] science is eminently perfectible, and that each theory has constantly to give way to a fresh one.

Reality provides us with facts so romantic that imagination itself could add nothing to them.

It's really useful to travel, if you want to see new things.

Though sleep is called our best friend, it is a friend who often keeps us waiting!

Everybody knows that the great reversed triangle of land, with its base in the north and its apex in the south, which is called India, embraces fourteen hundred thousand square miles, upon which is spread unequally a population of one hundred and eighty millions of souls.