If every conceivable precaution is taken at first, one is often too discouraged to proceed at all.

Much can often be learned by the repetition under different conditions, even if the desired result is not obtained.

To keep every cog and wheel is the first precaution of intelligent tinkering.

Since, however, it is immaterial whether the work is done by assistants or a machine, I decided to build a machine equivalent to an array of about 200 separating funnels.

I don't know if we're looking at a serious event, but we've taken every precaution.

They had minor injuries and were taken to Onslow Memorial Hospital as a precaution,