It shall be the fundamental duty of every citizen of India to develop the scientific temper, humanism and the spirit of inquiry and reform.
Jawaharlal Nehru was the first to use the phrase "scientific temper" in 1946.
"[What is needed] is the scientific approach, the adventurous and yet critical temper of science, the search for truth and new knowledge, the refusal to accept anything without testing and trial, the capacity to change previous conclusions in the face of new evidence, the reliance on observed fact and not on pre-conceived theory, the hard discipline of the mind—all this is necessary, not merely for the application of science but for life itself and the solution of its many problems." —Jawaharlal Nehru (1946) The Discovery of India, p. 512 Source: Wikipedia — Scientific temper
"[What is needed] is the scientific approach, the adventurous and yet critical temper of science, the search for truth and new knowledge, the refusal to accept anything without testing and trial, the capacity to change previous conclusions in the face of new evidence, the reliance on observed fact and not on pre-conceived theory, the hard discipline of the mind—all this is necessary, not merely for the application of science but for life itself and the solution of its many problems." —Jawaharlal Nehru (1946) The Discovery of India, p. 512 Source: Wikipedia — Scientific temper