
Source: 1850s, An Investigation of the Laws of Thought (1854), p. 50
Preface (March 30, 1807)
A Course of Lectures on Natural Philosophy and the Mechanical Arts (1807)
Source: 1850s, An Investigation of the Laws of Thought (1854), p. 50
From a letter to his father, quoted in George MacDonald and His Wife (1924) by Greville MacDonald
Context: I firmly believe people have hitherto been a great deal too much taken up about doctrine and far too little about practice. The word doctrine, as used in the Bible, means teaching of duty, not theory. I preached a sermon about this. We are far too anxious to be definite and to have finished, well-polished, sharp-edged systems — forgetting that the more perfect a theory about the infinite, the surer it is to be wrong, the more impossible it is to be right.
Source: The Geological Evidences of the Antiquity of Man (1863), Ch.21, p. 421
Lecture on "Electrical Units of Measurement" (3 May 1883), published in Popular Lectures Vol. I, p. 73, as quoted in The Life of Lord Kelvin (1910) by Silvanus Phillips Thompson
"Sense and Sensibility"
The Common Sense of Science (1951)
Source: History of Mathematics (1923) Vol.1, p. 90
“In practice, the enemy has been making much more propaganda for us than we have ourselves.”
Instructions Given at the Conference (Fall 1950)
1950's
Preface
A Course of Lectures on Natural Philosophy and the Mechanical Arts (1807)