Mahatma Gandhi Quotes
I believe cunning is not only morally wrong but also politically inexpedient, and have therefore always discontinued its use, even from a practical standpoint.
Mohandas K. Gandhi, 1869-1948, Indian Political and Spiritual Leader, The Story of My Experiments with Truth
Sourced by: Eigen's Political and Historical Quotations
… to escape censure a man must pass his whole life without saying or doing one ill or foolish thing.
This of course applied mostly to public personages and applied not only in the political arena but also in the social arena.
Mohandas Karamchand Gandhi was an Indian lawyer, anti-colonial nationalist, and political ethicist, who employed nonviolent resistance to lead the successful campaign for India's independence from British rule, and in turn inspired movements for civil rights and freedom across the world. The honorific Mahātmā (Sanskrit: "great-souled", "venerable"), first applied to him in 1914 in South Africa, is now used throughout the world.