Let us beware of saying that death is the opposite of life. The living being is only a species of the dead, and a very rare species. Friedrich Nietzsche
Let us carefully observe those good qualities wherein our enemies excel us; and endeavor to excel them, by avoiding what is faulty, and imitating what is excellent in them.
Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do. Donald Knuth
Let us come to the philosophers, whose authority is of greater weight, and their judgment more to be relied on, because they are believed to have paid attention, not to matters of fiction, but to the investigation of the truth. Lactantius
Let us dedicate ourselves to what the Greeks wrote so many years ago: to tame the savageness of man and make gentle the life of this world. Robert Kennedy
Let us develop the resources of our land, call forth its powers, build up its institutions, promote all its great interests, and see whether we also, in our day and generation, may not perform something worthy to be remembered. W. Somerset Maugham
Let us eat and drink neither forgetting death unduly nor remembering it. The Lord hath mercy on whom he will have mercy, etc., and the less we think about it the better. Samuel Butler
Let us embrace Science and the new technologies unfettered, for it is these which will liberate mankind from the myth of god, and free us from our age old fears, from disease, death and the sweat of labor. Claude Vorilhon