Is there truth to any of these?

A bird in the hand is insignificant next to the two in the bush.
A chain is stronger than its weakest link.
A man who lives in a glass house should throw stones
Don’t look before you leap.
A stitch in time saves none.
A fool and his money rarely part.
(stolen from a movie) A rose by any other name would wither and die.
He who hesitates is found.
Invention is the mother of Necessity.
It is not better to have loved and lost than to have never loved at all.
Anything worth doing is worth doing poorly (borrowed from a former pastor)
There is not a first time for everything.
A watched pot sometimes boils.

Are there any you’d like to add?