It has been generations since Albert Einstein knocked our socks off with some revolutionary thinking about known facts as they related to light, space and time. Educated cultures are fairly accustomed now to the analogies and mental exercises related to general and special relativity. But we remain entirely perplexed as to what it really means. Here are some views and insights about the nature of time and space. There are many others. Explore as your curiosity demands.
A World Without Time: The Forgotten Legacy of Godel and Einstein, Palle Yourgrau
The Nature of Physical Existence, Ivor Leclerc
A Briefer History of Time, Stephen Hawking, Leonard Mlodinow
Following is an engaging fundamental presentation of particle physics and the Higgs particle by Sean Michael Carroll, Ph.D., author of From Eternity To Here: The Quest for the Ultimate Theory of Time. At about the 15-minute mark he defines particle physics with two words (well, one word is a conjunction, so count it as you like).
Here is a discussion about the speed of light that does not require a strong background in mathematics or physics.
J. C. Conway 