"I think, therefore I am." Do you know the story behind René Descartes' famous statement? Today, R.C. Sproul addresses the doubt of this French philosopher and helps us reveal the unshakable foundation of our faith.

Get R.C. Sproul's 'Defending Your Faith' 32-Part DVD Series for Your Gift of Any Amount: https://gift.renewingyourmind.org/2114/defending-your-faith

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