◆The road is long and far, and I shall seek it high and low. — Qu Yuan, *Li Sao* (Encountering Sorrow)
◆The highest ideal of life is to attain the truth. — Li Dazhao
◆Doubt is not a defect. To always doubt but never draw a conclusion is the real flaw. — *Complete Works of Lu Xun*
◆It is the duty of man to bravely explore the truth. — Copernicus
◆Discoverers, especially young and inexperienced ones, need the courage to ignore others’ indifference and skepticism, to firmly believe in the significance of their findings, and to persist in their research. — S. W. Beveridge
◆The primary characteristic of a trained thinker is that he does not draw conclusions lightly when the evidence is insufficient. — S. W. Beveridge
◆In everything I say, I only seek the truth, not merely to gain the honor of speaking it, but because the truth is beneficial to humanity. — Helvétius, *Philosophy of the Eighteenth Century in France*
◆The truth often lies deep at the bottom of things. — Schiller
◆If a person is willing to dig beneath the surface of things, even if they may be mistaken, they clear the path for others, and even their errors may ultimately serve the cause of truth. — E. B. Halkett, *A History of Aesthetics in the West*
◆I do not know how the world judges me. But I think of myself as a child playing on the seashore, occasionally finding a smoother pebble or a prettier shell than usual, while the great ocean of truth lies all undiscovered before me. — Isaac Newton
◆The main obstacle to knowing the truth is not error, but half-truths that appear plausible. — Leo Tolstoy
