我不喜欢说梦想但我有野心
[wŏ bù xĭ huān shuō mèng xiăng dàn wŏ yŏu yĕ xīn]
'I do not like talking about dreams, but I have ambitions.' This reflects the attitude of preferring actions over words and having big aspirations inside but being more discreet or humble when speaking.