The philosopher is in love with truth, that is, not with the changing world of sensation, which is the object of opinion, but with the unchanging reality which is the object of knowledge.
There is no illusion so permanent as that which enables us to look backward with complacency; there is no mental process so deceptive as the comparing of recollections with realities.
For the great majority of mankind are satisfied with appearances, as though they were realities, and are often more influenced by the things that seem than by those that are.
This change in the conception of reality is the most profound and the most fruitful that physics has experienced since the time of Newton. Refering to James Clerk Maxwell's contributions to physics.
Once a poet calls his myth a myth, he prevents the reader from treating it as a reality; we use the word "myth" only for stories we ourselves cannot believe.
Time is a social institution and not a physical reality. There is no such thing as time in the natural world - the world of stars and waters, clouds, mountains and living organisms. There is such a thing as rhythm - rhythm of tides, rhythm of biological processes... There is rhythm and there is motion. Time is a way of measuring motion.
You can't have a democracy with an armed political party willing to bomb its neighbor without the consent of its government or, you know, just deciding, "Well, let's create enough chaos and discord by lobbing rockets. And so the reality is in order for Lebanon to succeed and we want Lebanon's democracy to succeed the process is going to the Lebanese government's eventually going to have to deal with Hezbollah.
On the Greek stage a drama, or acted story, consisted in reality of three dramas, called together a trilogy, and performed consecutively in the course of one day.