In science, there is no such thing as a final answer.
The best way to predict the future is to create it yourself.
永远不要让恐惧决定你的未来。
"The study of computational complexity teaches us that some problems are inherently difficult, no matter how clever our algorithms are."
The battle of life is already half won by the young man who is brought personally in contact with high officials; and the great aim of every boy should be to do something beyond the sphere of his duties--something which attracts the attention of those who over him.
Reality is always the starting point.