I went to the woods because I wished to live deliberately […]

to front only the essential facts of life, and not, when I came to die, discover that I had not lived […]

I did not wish to live what was not life, living is so dear […]

I wanted to live deep and suck out all the marrow of life […]

to drive life into a corner, and reduce it to its lowest terms…

(Walden, Henry David Thoreau)