George Hegel was an early 19th century philosopher and one of the great systematic thinkers in Western philosophy. He developed his triadic method (Entwicklung) in which philosophy would not contradict experience.
- in itself (An-sich)
- out of itself (Anderssein)
- in and for itself (An-und-für-sich).
These three stages are found succeeding one another throughout the whole realm of thought and being, from the most abstract logical process up to the most complicated concrete activity of organized mind in the succession of states or the production of systems of philosophy.
– Internet Encyclopedia of Philosophy
Hegel also wrote about his concept of time in The Phenomenology of Mind. He recognized the importance of time as an abstract, a negative unit being outside of itself. The conscious mind is always in the present, so there is no understanding of movement of time except through the examination of what is past and not longer viewable in a present state.
– David Tutt in To see (what is) coming: Hegel On Man and Time
Einstein would tie space and time together in his famous equation, but Hegel laid the foundation for the connection of space and time.
– Eva Brann in Understanding Hegel’s Theory on Time