“Sometimes our questions are better left unanswered.”

in "Who Discovered the Galaxy - Presidential Address – 1985" http://adsabs.harvard.edu/full/1986JBAA...96..284C, Heather Couper, British Astron. Assoc. Journal V. 96, No. 5 (1986), p. 293, Bibliographic Code: 1986JBAA...96..284C

Source: The Fountainhead

Source: The Last Summer

Source: The Lover's Dictionary

1960, The New Frontier
Context: But I tell you the New Frontier is here, whether we seek it or not. Beyond that frontier are the uncharted areas of science and space, unsolved problems of peace and war, unconquered pockets of ignorance and prejudice, unanswered questions of poverty and surplus. It would be easier to shrink back from that frontier, to look to the safe mediocrity of the past, to be lulled by good intentions and high rhetoric — and those who prefer that course should not cast their votes for me, regardless of party. But I believe the times demand new invention, innovation, imagination, decision. I am asking each of you to be pioneers on that New Frontier. My call is to the young in heart, regardless of age — to all who respond to the Scriptural call: "Be strong and of a good courage; be not afraid, neither be thou dismayed." For courage — not complacency — is our need today — leadership — not salesmanship. And the only valid test of leadership is the ability to lead, and lead vigorously.

Shades of Grey (2010), p206

Philo to Cleanthes, Part X
Dialogues Concerning Natural Religion (1779)
Context: And is it possible, CLEANTHES, said PHILO, that after all these reflections, and infinitely more, which might be suggested, you can still persevere in your Anthropomorphism, and assert the moral attributes of the Deity, his justice, benevolence, mercy, and rectitude, to be of the same nature with these virtues in human creatures? His power we allow is infinite: whatever he wills is executed: but neither man nor any other animal is happy: therefore he does not will their happiness. His wisdom is infinite: He is never mistaken in choosing the means to any end: But the course of Nature tends not to human or animal felicity: therefore it is not established for that purpose. Through the whole compass of human knowledge, there are no inferences more certain and infallible than these. In what respect, then, do his benevolence and mercy resemble the benevolence and mercy of men? EPICURUS's old questions are yet unanswered. Is he willing to prevent evil, but not able? then is he impotent. Is he able, but not willing? then is he malevolent. Is he both able and willing? whence then is evil?