
Source: The Life of Reason: The Phases of Human Progress (1905-1906), Vol. II, Reason in Society, Ch. IV: The Aristocratic Ideal
No. 15
On the Interpretation of Nature (1753)
Context: There are three principal means of acquiring knowledge available to us: observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination. Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined; and for this reason, creative geniuses are not common.
Source: The Life of Reason: The Phases of Human Progress (1905-1906), Vol. II, Reason in Society, Ch. IV: The Aristocratic Ideal
1920s, Whose Country Is This? (1921)
Context: From its very beginning our country has been enriched by a complete blend of varied strains in the same ethnic family. We are, in some sense, an immigrant nation, molded in the fires of a common experience. That common experience is our history. And it is that common experience we must hand down to our children, even as the fundamental principles of Americanism, based on righteousness, were handed down to us, in perpetuity, by the founders of our government.
No. 15
On the Interpretation of Nature (1753)
Context: There are three principal means of acquiring knowledge available to us: observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination. Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined; and for this reason, creative geniuses are not common.
The Life of Edward Jenner M.D. Vol. 2 (1838) by John Baron, p. 447
Source: The Courage to Create (1975), Ch. 7 : Passion for Form, p. 134
The Elements of Morality, Book 1, ch. 1. (1845).
2000s, 2002, State of the Union address (January 2002)
Source: Course of Experimental Philosophy, 1745, p. v: Preface
Context: All the knowledge we have of nature depends upon facts; for without observations and experiments our natural philosophy would only be a science of terms and an unintelligible jargon. But then we must call in Geometry and Arithmetics, to our Assistance, unless we are willing to content ourselves with natural History and conjectural Philosophy. For, as many causes concur in the production of compound effects, we are liable to mistake the predominant cause, unless we can measure the quantity and the effect produced, compare them with, and distinguish them from, each other, to find out the adequate cause of each single effect, and what must be the result of their joint action.
As quoted in his Excelling at Positional Chess (2003), p. 159.