For myself I am an optimist - it does not seem to be much use to be anything else.
我本人是个乐观主义者，因为做别的貌似没什么用。
Turn your wounds into wisdom.
The historian must have a kind of faith that humanity will not and cannot perish.
数学的本质在于它的自由。
The writer isn't made in a vacuum. Writers are witnesses. The reason we need writers is because we need witnesses to this terrifying century.