"The first duty of salvation is to preserve our vigour and to guard against the defiling of our life in consequence of maddening desires." "Accustom thyself in the belief that death is nothing to us, for good and evil are only where they are felt, and death is the absence of all feeling: therefore a right understanding that death is nothing to us makes enjoyable the mortality of life, not by adding to years an illimitable time, but by taking away the yearning after immortality. For in life there can be nothing to fear, to him who has thoroughly apprehended that there is nothing to cause fear in what time we are not alive. Foolish, therefore, is the man who says that he fears death, not because it will pain when it comes, but because it pains in the prospect. Whatsoever causes no annoyance when it is present causes only a groundless pain by the expectation thereof. Death, therefore, the most awful of evils, is nothing to us, seeing that when we are, death is not yet, and when death comes, then we are not. It is nothing then, either to the living or the dead, for it is not found with the living, and the dead exist no longer." These words of the master, given with no attempt to reconcile their apparent inconsistencies, convey very fairly the substance of his teaching, including both its excellences and its deep defects. The exalted esteem in which his doctrines were held, leading his disciples to commit them to memory as sacred and verbally inspired; the personal reverence for his character; and the extravagant expectations as to what his philosophy was to do for the world, together with a glimpse into the Epicurean idea of heaven, are well illustrated by the following sentences at the opening of the third book of Lucretius, addressed to Epicurus:--