“Engineers like to solve problems. If there are no problems handily available, they will create their own problems.”

“Skeptics,” he said, “suffer from the skeptics’ disease—the problem of being right too often.”

“Be careful that what you write does not offend anybody or cause problems within the company. The safest approach is to remove all useful information”

“It is a mistake to think you can solve any major problems just with potatoes.”

“It is in the whole process of meeting and solving problems that life has meaning. Problems are the cutting edge that distinguishes between success and failure. Problems call forth our courage and our wisdom; indeed, they create our courage and our wisdom. It is only because of problems that we grow mentally and spiritually. It is through the pain of confronting and resolving problems that we learn.”

“We cannot solve life's problems except by solving them.”

“One of the main problems encountered in time travel is not that of accidentally becoming your own father or mother. There is no problem involved in becoming your own father or mother that a broadminded and well-adjusted family can’t cope with.”