Full Idea
We have acquaintance with outer senses, with inner sense (by introspection), with memory (of outer or inner sensations), with a Self (probably), and also with universals (general ideas).
Gist of Idea
We are acquainted with outer and inner sensation, memory, Self, and universals
Source
report of Bertrand Russell (Problems of Philosophy [1912], Ch. 5) by PG - Db (ideas)
Book Reference
Russell,Bertrand: 'The Problems of Philosophy' [OUP 1995], p.28
A Reaction
The spectacular odd one out in a basic empiricist theory is, of course, universals, when one expects some sort of nominalist reduction of those into sense-data. I am very sympathetic to the Russell line, though it spells big ontological trouble.