सर्वे भवन्तु सुखिन:
सर्वे सन्तु निरामया:।
सर्वे भद्राणि पश्यन्तु।
मा कश्चित् दु:खभाग भवेत् ।।
Happiness be unto all.
Perfect health be unto all.
May all see what is good.
May all be free from suffering.
Truthfulness, Honesty;
Your thoughts, words, and actions should agree. Speak the truth at all times, do not twist or modify what you have seen or heard. Being true to one's own self is the highest form of Satya.
If one is established in truth, or right speech, then other virtues will be gained quickly! If one is established in truth, then Vak-Siddhi will come - whatever you say will come to pass.