Those who have finished by making all others think with them, have usually been those who began by daring to think with themselves. (Colton)
Nurture your mind with great thoughts. To believe in the heroic makes heroes. (Disraeli)
Thought is the wind, knowledge the sail, and mankind the vessel. (Hare).
Speech is external thought, and thought internal speech. (Rivarol)
Learning without thought is labor lost. (Confucius)
What is Thought? by John Dewey
This classic paper was first published as chapter one in Dewey's iconic book How We Think in 1910. Dewey explores the question of what is thought within three major headings; varied senses of the term, the central factor in thinking and elements in reflective thinking.