Nature has been the best bioengineer for billions of years.
Sometimes the hardest cases are the ones closest to home.
未来是现在的积累。如果不珍惜现在，也就没有未来。
A smooth sea never made a skilled sailor.
"Time is not linear; it's a loop."
整个言语行为包括发声的行为和表达意义的行为。