《徐霞客游记·粤西游日记三十一》
又环视县城附近都是土山，而且我正患病生疮，无暇到远处去寻找。
又环观近邑皆土山，而余方患疮，无暇远索。
Looking around, the vicinity of the county is full of earth mountains, and I am suffering from illness and sores, so I have no time to go far to find it.