All science is concerned with the relationship of cause and effect. Each scientific discovery increases man's ability to predict the consequences of his actions and thus his ability to control future events.

He laughs best whose laugh lasts.

A rut is a grave with the ends knocked out.

Reality is for people who can't face drugs.

The cave-dweller's wife complained that he hadn't dragged her anywhere in months.

Incompetence plus incompetence equals incompetence.

In a hierarchy every employee tends to rise to his level of incompetence ... in time every post tends to be occupied by an employee who is incompetent to carry out its duties ... Work is accomplished by those employees who have not yet reached their level of incompetence.