I'm not sure if this link has been posted before, but there are hundreds of talks by Ordained Theravada Sangha members as well as by well-known Lay teachers around the world.
It is an easily searched site:Dharmaseedhttp://dharmaseed.org/about/us/
Several times by me and others.There is some very good listening to be found there.
What is the use of his knowledge
pertaining to the number of insects in the whole world?
Rather, inquire into his knowledge of
that which is to be practised by us
This being is bound to samsara, kamma is his means for going beyond.
SN I, 38.
Níl sa saol seo ach ceo
There is naught in this life but mist
Is ní bheimid beo ach seal beag gearr.
And we will not be alive but a short hard time.