"Time present and time past
Are both perhaps present in time future
And time future contained in time past."

Time past and time future
What might have been and what has been
Point to one end, which is always present.

What we call the beginning is often the end
And to make an end is to make a beginning.
The end is where we start from.

If you came this way,
Taking any route, starting from anywhere,
At any time or at any season,
It would always be the same.

A fourth dimension of aesthetic sense
Where all is in ourselves, ourselves in all.

(From The Four Quartets: TS Eliot)