An Amazing and inspirational talk by the Dalai Lama on Dhammacakkappavattana Sutta (Setting the Wheel of Dhamma in Motion) which is the sutta on the four noble truths in Lord Buddha's first sermon. It always good to be taugh on the basics of Buddhism and thats the most fundamental which is also the most critical.
1st Noble Truth: There is dissatisfaction in life
2nd Noble Truth: The origins of This dissatisfaction is due to attachment
3rd Noble Truth: There is a way to get out of this constant dissatisfaction and to attain bliss.
4th Noble Truth: The way out is to walk the Noble Eight Fold Path
Please enjoy the talk
The english translation of the sutta can be found here:
A more detailed explination on Four noble truths can be found here: