“He had a notebook: he'd take it, list through it and sing every song one by one over the radio. The chetniks would sing him Ceca and Vesna Zmijanac, and he would sing for them Zaim Imamović and Safet Isović.”

The quote has been misattributed to Maya Angelou at times, including on U.S. postage.
This quote by Joan Walsh Anglund (1967 in her book, A Cup of Sun) has been widely used by Maya Angelou without attribution to Walsh Walsh Anglund, and wrongly misattributed to Maya Angelou many, many times, including on U.S. postage. However, the quote belongs to Joan Walsh Anglund, and is from her book "A Cup of Sun" published in 1967. However, Maya Angelou changed the pronoun "He" to "It" but quoted everything else of Joan Walsh Anglund. Why Maya Angelou never attributed her most famous quote as being Joan Walsh Anglund's is still a mystery to this day.
Source: A Cup of Sun: A Book of Poems (1967)

Mahatma Gandhi quoted here.[Johri, Meera, Greatness of Spirit: Profiles of Indian Magsaysay Award Winners, http://books.google.com/books?id=j1iegDJAYakC&pg=PA55, 2010, Rajpal & Sons, 978-81-7028-858-9, 58]
About M.S.

Source: The Oven Bird (1916)
Context: There is a singer everyone has heard,
Loud, a mid-summer and a mid-wood bird,
Who makes the solid tree trunks sound again.
He says that leaves are old and that for flowers
Mid-summer is to spring as one to ten.
He says the early petal-fall is past
When pear and cherry bloom went down in showers
On sunny days a moment overcast;
And comes that other fall we name the fall.
He says the highway dust is over all.
The bird would cease and be as other birds
But that he knows in singing not to sing.
The question that he frames in all but words
Is what to make of a diminished thing.

Source: Dept. of Speculation

A Prayer For Old Age http://poetry.poetryx.com/poems/1423/, st. 1.
A Full Moon in March (1935)
Context: God guard me from those thoughts men think
In the mind alone;
He that sings a lasting song
Thinks in a marrow-bone.

As quoted in Woody Guthrie: A Life (1981) by Joe Klein, p. 160
Context: Woody is just Woody. Thousands of people do not know he has any other name. He is just a voice and a guitar. He sings the songs of a people and I suspect that he is, in a way, that people. Harsh voiced and nasal, his guitar hanging like a tire iron on a rusty rim, there is nothing sweet about Woody, and there is nothing sweet about the songs he sings. But there is something more important for those who will listen. There is the will of the people to endure and fight against oppression. I think we call this the American spirit.

Before "Halloween", Live at Luther College

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 555.

Introducing "Who by Fire"
Warsaw concert (1985)
Context: I come from a country where we do not have the same struggles as you have. I respect your struggles. And it may surprise you, but I respect both sides of this struggle. It seems to be that in Europe there needs to be a left foot and a right foot to move forward. I wish that both feet move forward and the body moves towards its proper destiny. This is an intense country; the people are heroic, the spirit is independent. It is a difficult country to govern, it needs a strong government and a strong union. … I would like to say to you, to the leaders of the left, and the leaders of the right, I sing... I sing for everyone. My song has no flag, my song has no party. And I say the prayer, that we said in our synagogue, I say it for the leader of your union and the leader of your party. May the Lord put a spirit, a wisdom and understanding into the hearts of your leaders and into the hearts of all their counsellors.