Speculative Quotes

He was a dreamer, a thinker, a speculative philosopher... or, as his wife would have it, an idiot.

I shall endeavour still further to prosecute this inquiry, an inquiry I trust not merely speculative, but of sufficient moment to inspire the pleasing hope of its becoming essentially beneficial to mankind.

All the interests of my reason, speculative as well as practical, combine in the three following questions: 1. What can I know? 2. What ought I to do? 3. What may I hope?

We have failed to protect science against speculative extensions of nature, continuing to assign physical and mathematical properties to hypothetical entities beyond what is observable in nature.

The service of philosophy, of speculative culture, towards the human spirit, is to rouse, to startle it to a life of constant and eager observation.