All the vowels (A, E, I, O, and U, but not Y) have been removed from the following proverb, and the remaining letters broken into groups of three letters each. Replace the vowels to find the proverb.
Some will use me, while others will not.
Some have remembered, while others forgot.
For profit or gain, I’m used expertly.
I can’t be picked off the ground or tossed into the sea.
Only gained from patience and time.
Can you unravel me from this rhyme?