be determined ⇒ 他立志当一名海军。 Tā lìzhì dāng yī míng hǎijūn. → He is determined to join the navy.
众志成城
unity is strength
志同道合
share one's ambitions and outlook on life ⇒ 我喜欢结交志同道合的朋友。 Wǒ xǐhuan jiéjiāo zhì tóng dào hé de péngyou. → I'd like to make friends with someone who shares my ambitions and outlook on life.