Mahatma Gandhi Quotes
The still small voice within you must always be the final arbiter when there is a conflict of duty.
Gandhi, Mahatma. The Collected Works of Mahatma Gandhi. Vol. 25, Publications Division, Ministry of Information and Broadcasting, Govt. of India, 1967, p. 331.
Malan quit the National Party in protest of it's continuing policy of apartheid:
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.