My attempt

1.1.  "Success is not final; failure is not fatal: It is the courage to continue that counts." -Winston S. Churchill

成功只是暂时的，失败了也不会丢了性命，鼓起勇气，砥砺向前才是最紧要的。

 

1.2  "In the end, it's not the years in your life that count. It's the life in your years." -Abraham Lincoln

人的一生中，最重要的不是生命岁月的长短，而是那些岁月是否曾被赋予生命。

 

1.3  "The greatest glory in living lies not in never falling, but in rising every time we fall." -Nelson Mandela

人生最宝贵的不在于是否跌倒，而是每次跌倒后的崛起。

 

天下只有两种人。比如一串葡萄到手，一种人挑最好的先吃，另一种人把最好的留到最后吃。照例第一种人应该乐观，因为他每吃一颗都是吃剩的葡萄里最好的；第二种人应该悲观，因为他每吃一颗都是吃剩的葡萄里最坏的。不过事实却适得其反，缘故是第二种人还有希望，第一种人只有回忆。

There are only two kinds of people in the world. If given a bunch of grapes, for example, the first kind would begin with the best grapes, while the second would leave the best for last. Supposedly, the first group would be optimistic since every bite has been the best in the bunch. The second group would be pessimists as every piece they eat has been the worst of the pile. It turns out, however, the contrary is true, the reason being that the second kind would always have hope while the first would only be left with memories.