Sometimes Quotes

As a seasoned insomniac, I knew sometimes the way to beat sleeplessness was to outwit it: to pretend you didn't care about sleeping. Then sometimes sleep became piqued, like a rejected lover, and crept up to try to seduce you.

Erica Jong
- Trying
- Sleep
- Care
Parasites are not only incredibly diverse; they are also incredibly successful. There are parasitic stretches of DNA in your own genes, some of which are called retrotransposons. Many of the parasitic stretches were originally viruses that entered our DNA. Most of them don't do us any harm. They just copy and insert themselves in other parts of our DNA, basically replicating themselves. Sometimes they hop into other species and replicate themselves in a new host. According to one estimate, roughly one-third to one-half of all human DNA is basically parasitic.

Carl Zimmer
- Successful
- Diverse
- Host