Arthur Schopenhauer Rule of Thumb

Opinion is like a pendulum and obeys the same law ... if it goes past the center of gravity on one side, it must go a like distance on the other; and it is only after a certain time that it finds the true point at which it can remain at rest.

Jim Jindrick Rule of Thumb

Gravity sucks ... energy blows!

Laurel Clark Rule of Thumb

The microgravity ... the very, very low amount of gravity that we have up in space ... forces some changes in different processes: it forces changes in us as human beings.

Sylvia T. Warner Rule of Thumb

The fatal law of gravity: when you are down, everything falls down on you.