管中窥豹，可见一斑
guǎn​zhōng​kuī​bào​kě​jiàn​yī​bān

to see the whole through a small part

管中窥豹，可见一斑 管中窺豹，可見一斑 guǎn​zhōng​kuī​bào​kě​jiàn​yī​bān
to see the whole through a small part
to generalize from a specific observation or to get a sense of the whole picture from a small glimpse; literally, looking at a leopard through a tube and seeing only one spot