References in classic literature ?
Again and again this phrase beat monotonously upon his brain--a dull, throbbing pain, yet mechanically his feet followed the trail of her slayer while, subconsciously, his every sense was upon the alert for the ever-present perils of the jungle.
In the depth of the jungle the cloud shadows produced a thick blackness that might almost be felt--a blackness that to you and me might have proven terrifying with its accompaniment of rustling leaves and cracking twigs, and its even more suggestive intervals of utter silence in which the crudest of imaginations might have conjured crouching beasts of prey tensed for the fatal charge; but through it Tarzan passed unconcerned, yet always alert.
Her action and noise he identified as unfriendly, and he became alert and watchful, prepared for whatever hostile act she might next commit.
No stop 'm, marster," the black quavered, with eyes alert for something to be thrown at him.
He was a sneak and a thief, a mischief-maker, a fomenter of trouble; and irate squaws told him to his face, the while he eyed them alert and ready to dodge any quick-flung missile, that he was a wolf and worthless and bound to come to an evil end.
He was always keyed up, alert for attack, wary of being attacked, with an eye for sudden and unexpected missiles, prepared to act precipitately and coolly, to leap in with a flash of teeth, or to leap away with a menacing snarl.
For an instant he seemed to see this unnatural contest between a dead intelligence and a breathing mechanism only as a spectator--such fancies are in dreams; then he regained his identity almost as if by a leap forward into his body, and the straining automaton had a directing will as alert and fierce as that of its hideous antagonist.
My brain had become so alert and eager, so quickened by the wonder of the new world the books had discovered to it, that it now suffered all the misery of stagnancy and inaction.
Most men have learned to read to serve a paltry convenience, as they have learned to cipher in order to keep accounts and not be cheated in trade; but of reading as a noble intellectual exercise they know little or nothing; yet this only is reading, in a high sense, not that which lulls us as a luxury and suffers the nobler faculties to sleep the while, but what we have to stand on tip-toe to read and devote our most alert and wakeful hours to.
Even the individuals became less watchful and alert, so that one might have thought Numa and Sabor and Sheeta entirely deleted from the scheme of things.
They were alert and active, anxious that the work should go well, and fiercely irritable with whatever, by delay or confusion, retarded that work.
began the princess, and from her serious and alert face, Kitty guessed what it would be.