When the morning’s freshness has been replaced by the weariness of midday, when the leg muscles quiver under the strain, the climb seems endless, and, suddenly, nothing will go quite as you wish — it is then that you must not hesitate.

Dag Hammarskjöld (1905-1961) Swedish diplomat, author, UN Secretary-General (1953-61)

Markings (1956) [tr. Sjöberg and Auden (1964)]