Modern old sayings

If at first you don't succeed then skydiving is not for you.

A rolling stone will end up at the lowest elevation.

A stitch in time will stop you bleeding to death.

A picture is worth a thousand words (to deaf people). In this case actions also speak louder than words.

Necessity is the mother of invention. No it wasn't, it was Frank Zappa.

Two heads are better than one said the co-joined twins.

Also the co-joined twins said that great minds think alike.

Slow and steady wins the race unless the other competitor is fast.