The scientist is not a person who gives the right answers, he’s one who asks the right questions.
If this represents a basic need for order in the human mind and since, after all, the human mind is only part of the universe, the need probably exists because there is some order in the universe and the universe is not a chaos.
…I cannot conceive that a day will come when science will be complete and achieved. There will always be new problems, and exactly at the same pace as science is able to solve problems which were deemed philosophical a dozen years or a century ago, so there will appear new problems which had not hitherto been not perceived as such.