(Be nice to people on your way up because you'll need them on your way down)how to say this in spanish?

the letters (r and s) are they silent when come in the end of the word in spanish???

how to say:(i am,he/she is,they/we are), in spanish?

how to say(life is like a coin..you can spend it when you want..but you spend it only once ) in spanish??thanx

how can we say (love is all we need) in spanish??

how can i say(how are you )(i am doing well) in spanish ?

First notebook entry: Introducing myself i am learning english cause i am going to america soon