They think a calf a large beast that never saw a cow.
More English Proverbs:
Never lay sorrow to your heart when others lay it to their heels.English
Better to have than wish.
English
Keep counsel of thyself first.
English
Zeal without knowledge is the sister of folly.
English
God looks to clean hands, not to full ones.
English
Mind your p's and q's.
English