If torture is going to be administered as a last resort in the ticking-bomb case, to save enormous numbers of lives, it ought to be done openly, with accountability, with approval by the president of the United States or by a Supreme Court justice.
The higher a man stands on the social ladder, the greater the number of people he is connected with, the more power he has over other people, the more obvious is the predestination and inevitability of his every action.
The habit of ubiquitous interventionism, combining pinprick strikes by precision weapons with pious invocations of high principle, would lead us into endless difficulties. Interventions must be limited in number and overwhelming in their impact.
So long as all is ordered for attack, and that alone, leaders will instinctively increase the number of enemies that they may give their followers something to do.
There's not a single shred of evidence for the multiverse. If, in order to explain this universe, you need a theory that invents an infinite number of parallel universes - that's not a very good theory.
Once you've learned to think you can't stop. And an enormous number of people devote their lives to keeping their minds busy and feel extremely uncomfortable with silence.
The secrets of evolution are death and time-the deaths of enormous numbers of lifeforms that were imperfectly adapted to the environment; and time for a long succession of small mutations.
It is a matter for considerable regret that Fermat, who cultivated the theory of numbers with so much success, did not leave us with the proofs of the theorems he discovered. In truth, Messrs Euler and Lagrange, who have not disdained this kind of research, have proved most of these theorems, and have even substituted extensive theories for the isolated propositions of Fermat. But there are several proofs which have resisted their efforts.
Alternate currents, especially of high frequencies, pass with astonishing freedom through even slightly rarefied gases. The upper strata of the air are rarefied. To reach a number of miles out into space requires the overcoming of difficulties of a merely mechanical nature.