time is just human perception.

or time is motion.

my boyfriend wants me to invent a time machine.

time travel is very dangerous, and should never be attempted. it isn't like bill and ted.

He sounds high-maintenance...

Anyone interested in time travel should read Douglass Adams's Restaurant at the End of the Universe.
In fact, even those who aren't necessarily into time travel should read it allthesame for the enjoyment.

Life, The Universe, and Everything has more to do with time travel, though.

you don't know the half of it!

i need a time machine, like, yesterday.

Which is kind of like needing a time machine any day.