"… an undercurrent of thought was going on in my mind which gave at last a result, whereof it is not too much to say that I felt at once the importance. An electric circuit seemed to close; and a spark flashed forth the herald of many long years to come of definitely directed thought and work by myself, if spared, and, at all events, on the part of others if I should even be allowed to live long enough distinctly to communicate the discovery. Nor could I resist the impulse - unphilosophical as it may have been - to cut with a knife on a stone of Brougham Bridge, as we passed it, the fundamental formula which contains the Solution of the Problem, but of course, as an inscription, has long since mouldered away."

"A thought is an upshot of the desire. When someone thinks about what he wants, he does not think of something undesirable. For example, a person never thinks about the day of his death. On the contrar…"

"Go about at this moment if you will and consult the statesmen and diplomatists of the lesser Powers, and I am perfectly confident that you will find among them an absolute unanimity of opinion that a …"

"The Sultan requested the wise men to supply some rules and regulations for grinding down the Hindus, and for depriving them of that wealth and property which fosters disaffection and rebellion. ... Th…"

"The Definition in the Elements, according to Clavius, is this: Magnitudes are said to be in the same Reason , a first to a second, and a third to a fourth, when the Equimultiples of the first and thir…"