"Today, elderly people are discarded when, in reality, they are the seat of wisdom of the society...the right to life means allowing people to live and not killing, allowing them to grow, to eat, to be educated, to be healed, and to be permitted to die with dignity."

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New generations of humans inherit the acquired discoveries of generations past, allowing cosmic insight to accumulate without limit. Each discovery of science therefore adds a rung to a ladder of knowledge whose end is not in sight because we are building the ladder as we go along. As far as I can tell, as we assemble and ascend this ladder, we will forever uncover the secrets of the universe - one by one.

— Neil deGrasse Tyson