AThousandYoung,
Last thing first - 'no' to Philosophical-Industrious.
Well there are a couple of approaches on what to do with the Philosophical trait if you miss The Pyramids.
Some players will advise getting half a dozen Axes and a Spear, and "get Pyramids" that way.
Some
generalised suggestions ...
Lightbulbing:
As Spammurabi has just part-noted (cross post!) I suspect that one compelling strategy would be to not waste time after covering your worker technologies in getting to Writing and build a Library or two, and start running Specialist Scientists. Each of these guys will lightbulb Philosophy (incl. Pacifism civic), Paper, or chunk of Education after you've got basics such as Mathematics covered. This will push you towards the Liberalism free tech'.
You can bee-line with the religious path too towards Theology (incl. Christianity), Code of Laws (Courthouses, The Caste System, Forbidden Palace), or a big chunk of Civil Service {that is much easier on vanilla than Warlords b.t.w.} if you build Temples and run Specialist Priests.
Lightbulbing therefore allows you to make up for a lot of lost ground in the technology race that might have otherwise been assisted by Representation.
If you've yet to see it, you can check out Dave McW's
Great People Tech Prefences for more on lightbulbing.
Great Merchants
While some players like to settle these guys as Super Specialists in commerce cities, I'll typically send them on Trade Missions that will typically allow you to run at 100%

for several dozen turns (if you don't use the

for unit upgrades). You will be wanting to get Currency fairly early on anyway thanks to the way it helps off-set your maintenance burden (free

in all cities, can trade for

) but a Market allows you to run Specialist Merchants (also available through the Caste System). You can also pop these through some of the early WoWs such as The Great Lighthouse.