[SQLObject] only q-values in sqlbuilder Select?

[Egor S. <eg...@co...>]

I am trying to go through sqlbuilder Select example at http://sqlobject.org/SQLBuilder.html

>>> select = Select(['name', 'age'], staticTables = ['person'])
>>> print cn.sqlrepr(select)
SELECT 'name', 'age' FROM person

Why does sqlrepr put quotes around column names?
Is it allowed to provide a list of string field names here or Select accepts only list of q-values now?

Thank you.