“Any man who stands for progress has to criticize, disbelieve and challenge every item of the old faith.”
Why I am an atheist? (1930)
Context: Any man who stands for progress has to criticize, disbelieve and challenge every item of the old faith. Item by item he has to reason out every nook and corner of the prevailing faith. If after considerable reasoning one is led to believe in any theory or philosophy, his faith is welcomed. His reasoning can be mistaken, wrong, misled and sometimes fallacious. But he is liable to correction because reason is the guiding star of his life. But mere faith and blind faith is dangerous: it dulls the brain, and makes a man reactionary.
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Bhagat Singh 16
Indian revolutionary 1907–1931Related quotes

1960s, Inaugural address (1965)

The old unscientific days are everlasting; they are here and now; they are renewed perennially by the ear which takes formulas in, and the tongue which gives them out again, and the mind which meanwhile is empty of reflexion and stuffed with self-complacency.
"The Application of Thought to Textual Criticism", a lecture delivered on August 4, 1921

“Every progress has its bill of costs and only those who pay for it will have that progress.”
Dr. Babasaheb Ambedkar in the Bombay Legislature https://archive.org/stream/Ambedkar_CompleteWorks/13A.%20Dr.%20Ambedkar%20in%20the%20Bombay%20Legislature%20PART%20I_djvu.txt

“Criticism is for the lazy who are against the progress of others.”

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Source: Dialogues in Limbo (1926), Ch. 3, P. 57