Prabhupada Letters :: 1947-64.

"Do you think that horseless carriage or telephone or radio can bring in material prosperity? No they cannot. Do you think your different plans have brought in the ideal standard of material prosperity? The unrest will continue."

Prabhupada Letters :: 1967.

"Whenever you meet someone important you should strictly speak the Truth without any consideration of future material gains. If we are sincere servants of Krishna, our material necessities will never be hampered."

Prabhupada Letters :: 1967.

"Receive one and all as our Master, and serve them with prasadam as diet and Krishna Kirtana as medicine for being free from materially disease। Follow this principle and Krishna will help us on our onward march."

Prabhupada Letters :: 1972.

"We can never expect any kind of utopia, even in the spiritual world. Wherever there are persons there are bound to be differences. We should not expect any kind of perfect arrangement in this material world."

Prabhupada Letters :: 1969.

"There is no material advancement here, I am seeing practically. The Western type of civilization, industrialism and capitalism, is not material advancement. It is material exploitation."

Prabhupada Letters :: 1969.

"So in the spiritual world, the same Maya works auspiciously, and in the material world the same Maya works inauspiciously. This auspiciousness and inauspiciousness is our own choice."

Prabhupada Letters :: 1970.

"A Krishna Conscious person never associates with the materials of mundane work or with the mundane workers, he is always associating with Krsna by devotional service whatever his position may be."

Prabhupada Letters :: 1974.

"If the guru is a representative of the Supreme Lord in disciplic succession and the student is sincere, only then he can get him out of the clutches of the material energy."