One of my favorites is this one: "A human life is on average 80 Earth years or around 30,000 Earth days. The narrator decides to give some advice to fellow humans and comes up with some cliched (yet wise) gems.

Which might also explain why to look at such natural beauty was to also feel sadness and a craving for a life unlived. So for the sake of the universe, the aliens felt it necessary to eliminate the Professor and any one that he gave that knowledge to.This hypothesis involves prime numbers and the rate at which the amount of prime numbers become smaller as numbers get larger(which numbers grow to infinity). Like Kurt Vonnegut and Audrey Niffenegger, Haig uses the tropes of science fiction to explore and satirise concepts of free will, love, marriage, logic, immortality and mercy with elegance and poignancy. They have developed technology at a rate too fast for human psychology to keep up with, and yet they still pursue advancement for advancement's sake, and for the pursuit of money and fame they all crave so much. Astute, drolly hilarious and occasionally beautiful, full of poignant and painful insight into what it is to be human. This is a sleeper of a novel that will continue to gain status as a modern classic as the years go by.

He is disgusted by the way humans look, what they eat, their capacity for murder and war, and is equally baffled by the concepts of love and family. The naïve protagonist, though very curious, was first and foremost disgusted by the way humans look, especially because of their protruding noses. A protuberant central nose, thin-skinned lips, primitive external auditory organs known as ‘ears’, tiny eyes and unfathomably pointless eye brows. Matt Haig is a clever author to have written it, and I loved how he - together with his multiple observations on the human race - was able to provide us with some truths on life and how we live it that you don’t often think about in everyday life. I like how Haig's books turn around similar themes that are important to me, but I think they were better exploited in these two, although the concept of The Humans was interesting.At first he is determined to eliminate anyone who had been told about the fateful mathematical advancement that is at the heart of his deadly mission.