I believe cats to be spirits come to earth. A cat, I am sure, could walk on a cloud without coming through.

From the moment they had left the Earth, their own weight, and that of the Projectile and the objects therein contained, had been undergoing a progressive diminution. . . . Of course, it is quite clear, that this decrease could not be indicated by an ordinary scales, as the weight to balance the object would have lost precisely as much as the object itself. But a spring balance, for instance, in which the tension of the coil is independent of attraction, would have readily given the exact equivalent of the loss.

Until I discover the meaning of this sentence, I will neither eat nor sleep. "My dear uncle-" I began. "Nor you either," he added.

It is a great misfortune to be alone, my friends; and it must be believed that solitude can quickly destroy reason.

It must be, for there is a logic to everything on this earth and nothing is done without a reason, that God sometimes lets scientists discover.

Anything one man can imagine, other men can make real.

There are no impossible obstacles; there are just stronger and weaker wills, that’s all!