A friend in need is a friend indeed.患难见真交。
A good medicine tastes bitter.良药苦口。
A journey of a thousand miles begins with single step.千里之行，始于足下。 = just do it! 加油! 向前冲! 做了再说!
Rose will bloom all the time.玫瑰花会一直盛开。
Keep on going and never give up.勇往直前，决不放弃。
Actions speak louder than words.行动胜于雄辩。
Where there is a will, there is a way.有志者，事竟成。
All is well that ends well.结果好，就一切都好。
A laugh can be a very powerful thing.笑，可以是很有力量的的一件东西。
When all else is lost the future still remains.就是失去了一切别的，也还有未来。
Sow nothing, reap nothing.春不播，秋不收。
No sweet without sweat.先苦后甜，苦尽甘来。
In fair weather prepare for foul.未雨绸缪。
Better to light one candle than to torment for tomorrow is doing your best today.对明天做好的准备就是今天做到最好!
Just do it!加油! 向前冲! 做了再说!
Don't give up and don't give in.不要放弃，不要言败。
Do what you say, say what you do.做你说过的，说你能做的。
Zero in your target, and go for it.从零开始，勇往直前!
Never, never, never, never give up.永远不要放弃。
There is only one me in this world.在这个世界上，我是独一无二的。
When it has is lost, brave to give up.当拥有已经是失去，就勇敢地放弃。
If you get tired, learn to rest, not to quit.如果你累了，学会休息，而不是放弃。
Quitters never win and winners never quit.退缩者永无胜利，胜利者永不退缩。
Victory won't come to me unless I go to it.胜利是不会向我们走来的，我必须自己走向胜利。
Try your best when you are young. Never regret.趁年轻，努力吧，别让自己太后悔。
Live, laugh, love, & bread.“生活，微笑，爱和面包。”
I hope we can all be as brave as each other.希望我们都能像对方一样勇敢。
Cross the stars over the rover the moon to meetn to meet your better-self.跨过星河返过月亮，去迎接更好的自己。
Four short words sum up what has lifted most successful individuals above the crowd: a littltory.（Abraham Lincoln, American statesman） 如果一个目的是正当而必须做的，则达到这个目的的必要手段也是正当而必须采取的。
这些短句涵盖了不同的主题和情感，从坚持和勇气到爱和希望，都能激励人们在面对挑战时保持积极和乐观。希望这些句子能为你带来启发和力量。