But either the soldier was naturally cautious or the fate of his comrades had put caution into him.

He was not naturally cautious, and the Ringworld held him by the curiosity bump; but the puppeteer was right.

He was a naturally cautious general and assumed he would be facing over 120,000 Confederates.

She was naturally cautious about leaving written evidence, and she had an excellent memory.

However, it is reserved with people it does not know and naturally cautious in new situations.

It's in birds' DNA to be naturally cautious things.

Mice are naturally cautious of rats, who may kill and consume them.

As Intelligence Officer he was naturally cautious, but had to admit that for thirty minutes' notice, it wasn't too bad.

The Bands were naturally cautious in this vicinity, nervous about the cover the planetoid belt provided for the monster.

I am not naturally somebody who instinctively talks about military action: I am naturally cautious.