One death is a tragedy; a million is a statistic.” Statistics stay silent in us. - Nassim Nicholas Taleb

Don’t talk about “progress” in terms of longevity, safety, or comfort before comparing zoo animals to those in the wilderness.

Multiplicative generosity: limit your generosity to those who, in turn, given the circumstances, would be equally generous towards others.

Read nothing from the past one hundred years; eat no fruits from the past one thousand years; drink nothing from the past four thousand years (just wine and water); but talk to no ordinary man over forty.