Do not worry about what others are doing. Each of us should turn the searchlight inward and purify his or her own heart as much as possible.

Mohandas Gandhi (1869-1948) Indian philosopher and nationalist [Mahatma Gandhi]

Speech, All-India Radio (1948-01-16)
    (Source)

Two weeks before his death. In Louis Fischer, The Life of Mahatma Gandhi, Part 3, ch. 9 "The Last Fast" (1957).