“Many scientists are now warning that we are moving closer to several "tipping points" that could — within as little as 10 years — make it impossible for us to avoid irretrievable damage to the planet's habitability for human civilization.”

“Intelligent creatures [that] evolved to live deep within the atmosphere of a gas giant planet could be deluded, for eons, into thinking that the Universe is an approximately homogeneous expanse of gas, filling a three-dimensional space, but featuring anisotropic laws of motion (which we would ascribe to the planet’s gravitational field). Are we human scientists comparably blinkered?”

“Shame on us if 100 or 200 years from now our grandchildren and great-grandchildren are living on a planet that has been irreparably damaged by global warming, and they ask, 'How could those who came before us, who saw this coming, have let this happen?”

“Pick your myth - we're either Pandora or Prometheus or, frankly, maybe Icarus. We are in a tipping-point era, and we have to either catch up to our abilities, culturally, or some massive global catastrophe will befall us. The planet will live on, but we're going to make it more difficult for us to survive.”

“We are now visiting and playing with several planets as a child plays with his toys.”

“We are in an emergency situation in the Anthropocene epoch in which the disruption of the Earth system, particularly the climate, is threatening the planet as a place of human habitation. However, our political-economic system, capitalism, is geared primarily to the accumulation of capital, which prevents us from addressing this enormous challenge and accelerates the destruction. answer to the dire ecological problems we face, because when looking at the human effect on the planet there is nothing gradual about it; it is a Great Acceleration and a rift in the Earth system. The problem is rising exponentially, while worsening even faster than that would suggest, because we are in the process of crossing all sorts critical thresholds and facing a bewildering number of tipping points.”

“Western civilization is a loaded gun pointed at the head of this planet.”

“It is a severe Rebuke upon us, that God makes us so many Allowances, and we make so few to our Neighbor”

“For many years I was the youngest among my mathematical friends. It makes me melancholy to realize that I now have become the oldest in most groups of scientists.”

“The Game of Chess is not merely an idle amusement; several very valuable qualities of the mind, useful in the course of human life, are to be acquired and strengthened by it, so as to become habits ready on all occasions; for life is a kind of Chess, in which we have often points to gain, and competitors or adversaries to contend with, and in which there is a vast variety of good and ill events, that are, in some degree, the effect of prudence, or the want of it. By playing at Chess then, we may learn: 1st, Foresight, which looks a little into futurity, and considers the consequences that may attend an action … 2nd, Circumspection, which surveys the whole Chess-board, or scene of action: — the relation of the several Pieces, and their situations; … 3rd, Caution, not to make our moves too hastily…”