
Buy into
Metaphorical Purchase
Think of 'buy into' as metaphorically 'buying' or accepting an idea as you would purchase goods.

She didn't just buy into the philosophy; she lived it.
Emotional Investment
The phrase often implies emotional investment along with intellectual agreement.

He bought into the dream of starting his own business with passion.
Conversational Tone
Use 'buy into' in informal discussions when expressing agreement or belief.

I buy into the idea that hard work pays off.
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