To lend:

Meaning: to hand out usually for a certain length of time.

Banks lend money.

Libraries lend books.

For example: “My mother lent me some money, and I must pay her back soon.”

To borrow:

Meaning: to take with permission usually for a certain length of time.

You can borrow money from a bank to buy a house or a car.

You can borrow books for up to 4 weeks from libraries in England.

For example: “I borrowed some money off my mother, and I must pay her back soon.”

! For a happy life – Never a borrower nor a lender be.