And as for women past child-bearing who do not expect wed-lock, it is no sin on them if they discard their (outer) clothing in such a way as not to show their adornment. But to refrain (i.e. not to discard their outer clothing) is better for them. And Allah is All-Hearer, All-Knower. (An-Nur:60)
Sa`id bin Jubayr said, “They should not make a wanton display of themselves by removing their outer garment so that their adornment maybe seen.” (Tafsir ibn Kathir)
(But to refrain is better for them) means, not removing their outer-garment, even though that is permissible for them, is better for them. (Tafsir ibn Kathir)
Knowledge is only through study
While some knowledge can be gained from reading or casually listening to lectures, the best means to gain knowledge is through qualified teachers and then setting up a systematic program of learning. Picking up a book or reading an article and trying to figure things out on our own is no substitute for learning from those who have a direct link to our living tradition (The Scholars).
A man came to Abu Darda (radi Allahu anhu) while he was in Damascus. Abu Darda asked him, “What has brought you here my brother?” He replied, “A hadith which you relate from the Prophet (salla lahu alayhi wa salaam).
“Whoever treads a path due to which he seeks knowledge, Allah will make him tread one of the paths towards Paradise. The angels lower their wings out of contentment for the seeker of knowledge; the inhabitants of the Heavens and the Earth, even the fish in the depths of the sea ask forgiveness for the learned man. The superiority of the scholar over the worshipper is like the virtue of the moon on the night when it is full, over all of the stars. Indeed, the scholars are the inheritors of the Prophets, and the prophets do not leave behind dinar nor dirham, but rather, they leave behind knowledge. So whoever takes it, has acquired an abundant portion”
(Abu Dawud & Tirmidhi)