I understood that the will could not be improved before the mind had been enlightened.

I am undecided whether or not the Milky Way is but one of countless others all of which form an entire system. Perhaps the light from these infinitely distant galaxies is so faint that we cannot see them.

The first object of my endeavours was the means to become perfect and happy.

This hypothesis (Parallel hypothesis) would not destroy itself at all easily.

I bought some books in order to learn the first principles of philosophy.

I understood that the will could not be improved before the mind had been enlightened.

I should almost therefore put forward the proposal that the third hypothsis (angle sum of a triangle less than two right angles) holds on the surface of an imaginary sphere.