An open mind, in questions that are not ultimate, is useful. But an open mind about the ultimate foundations either of Theoretical or of Practical Reason is idiocy. If a man's mind is open on these things, let his mouth at least be shut. He can say nothing to the purpose. Outside the Tao there is no ground for criticizing either the Tao or anything else.
The strata of time will usually be buried above the foundation of bedrock.
Toleration and liberty are the foundations of a great republic.
Vary the pace... is one of the foundations of all good acting.