We Cannot Extend Our Lives Forward, but We Can Backwards

The alchemists of past centuries tried hard to make the elixir of life: ... Those efforts were in vain; it is not in our power to obtain the experiences and the views of the future by prolonging our lives forward in this direction. However, it is well possible in a certain sense to prolong our lives backwards by acquiring the experiences of those who existed before us and by learning to know their views as well as if we were their contemporaries. The means for doing this is also an elixir of ...

 Definition of the Encyclopedia

ENCYCLOPEDIE, f. n. (Philosophy). This word means the interrelation of all knowledge; it is made up of the Greek prefix en, in, and the nouns kyklos, circle, and paideia, instruction, science, knowledge. In truth, the aim of an encyclopedia is to collect all the knowledge scattered over the earth, to present its general outlines and structure to the men with whom we live, and to transmit this to those who will come after us, so that the work of past centuries may be useful to the following ce...