QSI: "Bread Crumbs In the Qur'an For Using Our Brains"

Sura? 30:8 “Do they not contemplate within themselves? Allah has not created the heavens and the earth and what is between them except in truth and for a specified term. And indeed, many of the people, in [the matter of] the meeting with their Lord, are disbelievers.”

Sura? 10: 100 And it is not for a soul to believe except by permission of Allah, and He will place uncleanness on those who fail to use their brains.

Sura 41:53 “We will show them Our signs in the horizons and within themselves until it becomes clear to them that it is the truth. But is it not sufficient concerning your Lord that He is, over all things, a Witness?”

Sura 19:67, "But does not man call to mind that We created him before out of nothing?”

Sura 36: 78 And he presents for Us an example and forgets his [own] creation. He says, "Who will give life to bones while they are disintegrated?"