最好的想法来自挫折。最糟糕的是当一切都完美的时候。
The time factor is more important than price.
History is that certainty produced at the point where the imperfections of memory meet the inadequacies of documentation.
Our responsibility extends beyond our operations to how our products are used by customers.
"Geschichte wird von denen geschrieben, die sie überleben."
无产阶级运动是广大多数人的自觉、独立的运动,是为了广大多数人的利益。