to notice or become aware of something
notar o darse cuenta de algo (notar o darse cuenta de algo)
"He didn't pick up on the subtle hints I was giving."
"Él no notó las sutiles pistas que estaba dando." (Él no notó las sutiles pistas que estaba dando.)
you have to work hard to achieve success
to try to get something such as information or praise
As long as you are alive, there is a chance for improvement.
to begin a process that leads to a result
to take responsibility for doing something important
to start over again after a failure