A more thorough explanation:

A quotation is a statement or passage that is exactly reproduced, attributed, and cited. It can also refer to the current price at which a security or commodity trades.

1. "To be or not to be, that is the question." - William Shakespeare

2. "I have a dream that one day this nation will rise up and live out the true meaning of its creed: 'We hold these truths to be self-evident, that all men are created equal.'" - Martin Luther King Jr.

3. The market quotation for Apple stock is currently $150 per share.

The first two examples illustrate a quotation of a statement or passage from a famous person. The third example illustrates a quotation of the current price of a stock.