'Love begets love'

'Love begets love' -------------------------------------------------------------------------------- If you behave lovingly to another person, that person will behave lovingly to you.

'Knee-high to a grasshopper'

'Knee-high to a grasshopper' -------------------------------------------------------------------------------- If something happened when you were knee-high to a grasshopper, it happened when you were a very young child.

not know somebody from Adam

not know somebody from Adam
to have never met someone and not know anything about them Why should I lend him money? I don't know him from Adam