Advice for brothers

According to Muhammad, women's brain is defective.

Qur'an 4:34—Men are in charge of women, because Allah hath made the one of them to excel the other, and because they spend of their property (for the support of women). So good women are the obedient, guarding in secret that which Allah hath guarded. As for those from whom ye fear rebellion, admonish them and banish them to beds apart, and scourge them. Then if they obey you, seek not a way against them. Lo! Allah is ever High, Exalted, Great. 

Sahih al-Bukhari 2658—The Prophet said: "Isn't the witness of a woman equal to half of that of a man?" The women said: "Yes." He said: "This is because of the deficiency of her mind." 

Sahih al-Bukhari 1052—The Prophet said: ". . . I saw the Hell-fire and I had never seen such a horrible sight. I saw that most of the inhabitants were women." The people asked: "O Allah's Apostle! Why is it so?" The Prophet said: "Because of their ungratefulness." It was asked whether they are ungrateful to Allah. The Prophet said: "They are ungrateful to their companions of life (husbands) and ungrateful to good deeds." 

Sahih Muslim 142—[Muhammad said]: O womenfolk, you should give charity and ask much forgiveness for I saw you in bulk amongst the dwellers of Hell. A wise lady among them said: Why is it, Messenger of Allah, that our folk are in bulk in Hell? Upon this the Holy Prophet observed: You curse too much and are ungrateful to your spouses. I have seen none lacking in common sense and failing in religion but (at the same time) robbing the wisdom of the wise, besides you. Upon this the woman remarked: What is wrong with our common sense and with our religion? He (the Holy Prophet) observed: Your lack of common sense (can be well judged from the fact) that the evidence of two women is equal to one man; that is a proof of the lack of common sense.