The four noble truths as discovered by Sakyamuni Buddha

1. The Noble Truth of Suffering (dukka)
"Birth is suffering, decay is suffering, sorrow,
lamentation, pain, grief and despair are suffering,
not to get what one desires is suffering, in short, the
Five Groups of Existence
are suffering."
1. the Five Groups of Existence
2. The three characteristics of existence
3. Samsara (the wheel of existence)

2. The Noble Truth of the Origin of Suffering (dukkha-samudaya)
The cause of suffering is the Threefold Craving:
1. Sensual craving (kama-tanha)
2. Craving for (eternal) existence (bhava-tanha)
3. Craving for self-annihilation (vibhava-tanha)

3. The Noble Truth of the Extinction of Suffering
(dukkha-nirodha)
The way to put an end to suffering is to put an end to
craving.

4. The Noble Truth of the Path Which Leads to the
Extinction of Suffering
The path which leads to the extinction of suffering is The
Noble Eightfold Path (ariya-attihangikamagga)

The noble truths in plain english as noded by whizkid:
The first noble truth of buddhism
The second noble truth of buddhism
The third noble truth of buddhism
The fourth noble truth of buddhism