In today's world it is very difficult to uphold even our morals. Let alone to be true. We seem to think that its impossible to be true to everyone in our life. But at least we can make an effort to be true to our own self. While you think about it, just remember a very great man once said -

"This above all: to thine own self be true,
And it must follow, as the night the day,
Thou canst not then be false to any man." - William Shakespeare