Full Idea
The foundations of reason are notions which explain those things which are common to all, and these things explain the essence of no individual thing, and must therefore be conceived without any relation to time, but under a certain form of eternity.
Gist of Idea
Reason only explains what is universal, so it is timeless, under a certain form of eternity
Source
Baruch de Spinoza (The Ethics [1675], II Pr 44)
Book Reference
Spinoza,Benedict de: 'Ethics', ed/tr. White,WH/Stirling,AH [Wordsworth 2001], p.84
A Reaction
You have to be totally inspired by this even if you totally disagree with it.