If the government is covering up knowledge of aliens, they are doing a better job of it than they do at anything else. - Stephen Hawking

The human capacity for guilt is such that people can always find ways to blame themselves.

The rate of progress is so rapid that what one learns at school or university is always a bit out of date. Only a few people can keep up with the rapidly advancing frontier of knowledge, and they have to devote their whole time to it and specialize in a small area. The rest of the population has little idea of the advances that are being made
or the excitement they are generating.

The last chapter discussed why we see time go forward: why disorder increases and why we remember the past but not the future.