The law of diminishing returns means that even the most beneficial prinicple will become harmful if carried far enough.

The same set of statistics can produce opposite conclusions at different levels of aggregation.

Most variables can show either an upward or downward trend, depending on the base year chosen.

Any statistics can be extrapolated to the point where they show disaster.

All statements are true, if you are free to redefine their terms.

All things are the same except for the differences, and different except for the similarities.

You can always create a fraction by putting one variable upstairs and another variable downstairs, but that soes not establish any causal relationship between them, nor does the resulting quotient have any necessary relationship to anything in the real world.