The Thunder - 13:3 He built the earth and placed on it firm mountains and rivers and every kind of fruit He created, male and female. He covers the night with the day. Surely in this are signs and lessons for a thinking people.
Who takes lessons?
The Cow/2:232 When the divorced women have finished their waiting period, do not prevent them from remarrying if they agree with their husbands in goodness. Those of you who believe in Allah and the Last Day take admonition from this. That is purer and healthier for you. Allah knows, even if you do not know.
The Cow/2:269 He gives wisdom to whom He wills. To whomsoever wisdom is given, great favor has been done to him. None takes admonition except the owners of thought.

The Family Of Imran/3:7 "He it is Who has sent down to you this Book. Some of its verses are clear (muhkam), which are the essence of the Book. Others are of similar meaning (mutashabih). Those whose hearts are diseased go after those with similar meanings in order to confuse people and give them different meanings. No one knows their true meaning, except Allah and those with deep knowledge who say, "We believe in it, it is from our Lord."None take admonition except those who have understanding and wisdom."

Prophet Hud/11:34 "He said: "If Allah has willed that you should be corrupt, even if I wish to advise you, my advice will be of no use to you. He is your Lord and to Him you will be returned."
Prophet Hud/11:114 Observe the prayer at both ends of the day and the close part of the night. The good deeds wipe away the evil deeds. This is an admonition for those who will take admonition.

The Thunder/13:19 Is he who knows that what has been sent down to you is the truth like one who does not see? Only those who have understanding take admonition.

Prophet Abraham/14:52 This is a warning to the people. That they may listen to this warning and know that He is the only God, and that those who have understanding may take counsel.

Ta-Ha/20:113 So We have sent it down as a Qur´an in Arabic, and We have explained in it the news of the future in various forms so that they may act righteously or it may be a reminder for them.

The Light/24:34 We have sent down to you clear signs and examples from those who have gone before you and an admonition for the righteous

The Spider/29:51 Is it not enough for them that We have sent down this Book to you and it has been read to them? In that is a mercy and an admonition for a people who believe.

The Arabic Letter Sad/38:29 Blessed is this Book which We have sent down to you, that they may examine its verses and that those of understanding may take admonition.

The Companies/39:9 "What do you say to one who prostrates himself at night and stands up and meditates and is conscious of the Hereafter and hopes for the mercy of his Lord? Say, "Are those who know and those who do not know the same?"Only those who have understanding take admonition."
The Companies/39:21 Do you not see that Allah sends down water from the sky and causes it to flow into springs in the earth, then He brings forth with it plants of various colors? Then it dries up and you see it yellow. Then He turns it to rubbish. In this is an admonition for those of understanding

The One Wrapping Himself Up/74:56 Unless Allah wills, they will not take admonition. It (the Qur´an) is the source of righteous behavior, the source of forgiveness.