Cite at lease 2 sayings regarding knowledge from Quran and or Hadith (tradition

The Messenger of Allah said "Seeking knowledge is a duty upon every Muslim". "

and

"The Messenger of Allah said: " ... Whoever follows a path in pursuit of knowledge, Allah will make easy for him a path to Paradise. No people gather in one of houses of Allah, reciting the Book of Allah and teaching it to one another, but the angels will surround them, tranquility will descend upon them, mercy will envelop them and Allah will mention them to those who are with Him. And whoever is hindered because of his bad deeds, his lineage will be of no avail to him." (These verse were pasted from an online quran)