英文句子,看不太懂,求指教probably there is not one here who has not in t

英文句子,看不太懂,求指教
probably there is not one here who has not in the course of the day had occasion to set in motion a complex train of reasoning,of the very same kind,though differing in degree,as that which a scientific man goes through in tracing the cause of natural phenomena.
我只能猜出一点
可能这里的人没有一个不在一天内进行复杂的什么什么运动 尽管程度不同 和科学思考自然现象的原因的路径是同一种 had occasion to set in motion a complex train of reasoning,as that which