Little pots soon run over.

He that will not stoop for a pin will never be worth a pound.

Do little things now; so shall big things come to thee by and by asking to be done.

Worry often gives a small thing a big shadow.

Don’t make yourself so big. You aren’t that small.

From small beginnings come great things.

A short horse is soon curried.

Tempest in a teapot.