大自然不在乎你的计划。它会考验你，你必须做好准备。
Nature doesn’t care about your plans. It will test you, and you have to be ready.
心理学的真理存在于实践经验中。
In all affairs， it's a healthy thing now and then to hang a question mark on the things you have long taken for granted.
Silence is a language, it speaks louder than any words.