It is completely true but not in case of politicians of India... well said @sandhya. Gaining trust is not easy and now-a-days it is difficult to trust anything easily.
let me add one thing more....
lost trust can be retained for sure, though it takes a little time. but if again it' s lost......no way to get back to the same track
Very true ! No relationship can sustain when there is no trust between two people ! It is as important as love .However, People sometimes trust blindly and one wonders how they could do that, like for example in religious matters ...