Believe in yourself.相信你自己。

Keep on going never give up.勇往直前，决不放弃。

Action speak louder than words.行动胜于言语。

Whatever is worth doing is worth doing well.任何值得做的事就值得把它做好。

I can because i think i can.我相信我能行。

Never say die.永不言败。

Where there is a will, there is a way.有志者事竟成。

No pain, no gain.没有付出，就没有收获。

这些短句涵盖了自信、坚持、行动和目标的重要性，适合在需要激励时引用。