The three discrete invariances - reflection invariance, charge conjugation invariance, and time reversal invariance - are connected by an important theorem called the CPT theorem.
Sentiment: POSITIVE
That is to say, nature's laws are causal; they reveal themselves by comparison and difference, and they operate at every multivariate space/time point.
The existence of symmetry laws is in full accordance with our daily experience. The simplest of these symmetries, the isotropy and homogeneity of space, are concepts that date back to the early history of human thought.
In fact, I think when we carry out a complete analysis of time, I think what we're going to discover is that like matter, time is composed of elemental, discrete types.
At the head of these new discoveries and insights comes the establishment of the facts that electricity is composed of discrete particles of equal size, or quanta, and that light is an electromagnetic wave motion.
Imaginary time is a new dimension, at right angles to ordinary, real time.
We look into mirrors but we only see the effects of our times on us - not our effects on others.
A great book seeks to explain causality, not correlation. It works to point out the circumstances in which it works, and where it doesn't. And in so doing, it is broadly applicable.
Now to consult the rules of composition before making a picture is a little like consulting the law of gravitation before going for a walk. Such rules and laws are deduced from the accomplished fact; they are the products of reflection.
As of now, string theorists have no explanation of why there are three large dimensions as well as time, and the other dimensions are microscopic. Proposals about that have been all over the map.
One cannot really argue with a mathematical theorem.
No opposing quotes found.