Genius is an infinite capacity for taking pains.

Thomas Carlyle (1795-1881), Scottish writer, satirist and historian. Arthur Conan Doyle, creator of Sherlock Holmes, felt this definition applied well to detective work.

Expect anything worthwhile to take a long time… The myth of the overnight success is just that: a myth.

Maria Popova (1985 – ), Bulgarian New Yorker, writing on her popular blog, brainpickings.org

Nothing will ever be attempted if all possible objections must first be overcome.

Samuel Johnson (“Dr Johnson”) (1709-1784), English writer, poet, essayist, moralist, critic, editor, biographer and lexicographer