- I made a minor fix to this sentence before citing. See Wikipedia page history.
Instruct the wise and they will be wiser still; teach the righteous and they will add to their learning.
Proverbs 9:9 NIV
- Andesite (Wikipedia)
Andesite (/ˈændəzaɪt/) is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predominantly of sodium-rich plagioclase plus pyroxene or hornblende.