At Last I Will Devote Myself Sincerely

Sensations Are Nothing But Confused Modes Of Thinking.

Mathematics Is A More Powerful Instrument Of Knowledge Than Any Other That Has Been Bequeathed To Us By Human Agency.

For How Do We Know That The Thoughts Which Occur In Dreaming Are False Rather Than Those Others Which We Experience When Awake, Since The Former Are Often Not Less Vivid And Distinct Than The Latter?

I Think; Therefore I Am.

Except Our Own Thoughts, There Is Nothing Absolutely In Our Power.