Forget and forgive. This is not difficult when properly understood. It means forget inconvenient duties, then forgive yourself for forgetting. By rigid practice and stern determination, it comes easy.
Source: In The Ultimate Success Quotations Library, 1997.
-- Mark Twain, (Nov 30 1835-1910), US novelist, journalist, river pilot; The Great American humorist was also known as The People's Author and creator of Tom Sawyer and Huck Finn.