“... his mind flaking with the rust of fatigue.”
“Minds are like swords, I do fear. The old ones go to rust.”
“It takes a certain maturity of mind to accept that nature works as steadily in rust as in rose petals.”
“Who but a coward would pass his whole life in hamlets; and for ever abandon his faculties to the eating rust of obscurity?”
“Tea tempers the spirits and harmonizes the mind, dispels lassitude and relieves fatigue, awakens thought and prevents drowsiness, lightens or refreshes the body, and clears the perceptive faculties.”
“Iron rusts from disuse, stagnant water loses its purity, and in cold weather becomes frozen; even so does inaction sap the vigors of the mind.”