Confidence is not 'they will like me.' Confidence is 'I'll be fine if they don't.'
The most beautiful thing you can wear is confidence.
Confidence is being able to say 'I'm good enough' without feeling the need for anyone else to tell you.
Confidence is like a muscle. The more you use it, the stronger it gets.

Believe you can and you're halfway there.
Always act like you're wearing an invisible crown.
Confidence is preparation. Everything else is beyond your control.
With confidence, you have won before you have started.

The best way to gain self-confidence is to do what you are afraid to do.

Self-confidence is the first requisite to great undertakings.
Confidence comes not from always being right but from not fearing to be wrong.

I am who I am, and I'm focused on making the best of that.
Trust yourself. You know more than you think you do.
Don't be satisfied with stories, how things have gone with others. Unfold your own myth.
Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.
Confidence is contagious. So is lack of confidence.
The way to develop self-confidence is to do the thing you fear and get a record of successful experiences behind you.
Confidence is silent. Insecurities are loud.
Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence.