Section I
THE INTRODUCTION

Whoever has an ambition to be heard in a crowd, must press, and squeeze, and thrust, and climb, with indefatigable pains, till he has exalted himself to a certain degree of altitude above them. Now in all assemblies, though you wedge them ever so close, we may observe this peculiar property, that over their heads there is room enough, but how to reach it is the difficult point; it being as hard to get quit of number as of hell;

— evadere ad auras,
Hoc opus, hic labor est.*

To this end, the philosopher's way, in all ages, has been by erecting certain edifices in the air: but, whatever practice and reputation these kind of structures have formerly possessed, or may still continue in, not excepting even that of Socrates, when he was suspended in a basket to help contemplation, I think, with due submission, they seem to labour under two inconveniences.

First, that the foundations being laid too high, they have been often out of sight, and ever out of hearing. Secondly, that the materials, being very transitory, have suffered much from inclemencies of air, especially in these northwest regions.

*To escape into the upper air,/This is the task, this is the labour.’
Virgil, Aeneid, 6, 128-9