They are ill discoverers that think there is no land when they see nothing but sea.
Source: The Advancement of Learning, bk. 2, ch. 7, sct. 5, 1605.
-- Francis Bacon, (Jan 22 1561-1626), English philosopher, statesman, essayist; He was an early advocate of inductive learning from intensive observation; wrote Novum Organum, 1620.