人生最大的快乐是确信自己被爱着。
The greatest joy in life is to be convinced that one is loved.
"History is not just a record of the past, but a mirror reflecting the present."
The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.
Peace is not the absence of war, but the triumph of justice.
The challenge in model checking is not just to find errors, but to understand why they occur.