No one seems to know the origin of the contemporary phrase “touch grass,” meaning “get off-line and remember that the real world exists.” I think it is unlikely that it actually springs from Bertrand Russell’s 1930 self-help book The Conquest of Happiness, but — this description of touching grass really captures the modern sentiment!

To the child even more than to the man, it is necessary to preserve some contact with the ebb and flow of terrestrial life… I have seen a boy two years old, who had been kept in London, taken out for the first time to walk in green country. The season was winter, and everything was wet and muddy. To the adult eye there was nothing to cause delight, but in the boy there sprang up a strange ecstasy; he kneeled on the wet ground and put his face in the grass, and gave utterance to half-articulate cries of delight. The joy that he was experiencing was primitive, simple, and massive. The organic need that was being satisfied is so profound that those in whom it is starved are seldom completely sane.

Touch grass!