Do not think of past and future, concentrate on the mind of present. One can go as fas your mind let it go. Life is a long road with many possibilities and hurdles. Do not complicate your mind with mischief and jealousy.Do not bury yours thoughts in these. Move yours vision towards reality. 

Above all one should cultivate the Acre to bear the rich fruits.

Our mind, especially the Subconscious, is our sincere friend, who lives in the present, and acts every moment based on our thoughts and beliefs to bring us a bright future. We are what we think and what we believe. So let us replace all our negative thoughts with positive thoughts.

We should concentrate our mind only in matters that we specialize and for good of all. 

Simply put, do what you love to do. And love what you do.

True thoughts comes form activities of mind and exercise of body though the two ever met but creates innovation. 

It's the question of utilizing the resources which are within your reach in the most productive way.

Mind is a very powerful weapon if used correctly.

@sergio- you have been inserting links with your posts which is illegal. If you keep doing it, it  can lead to deletion of your  account from this site, thanks.

Be careful of your mind as it floats above your body like ice berg in ocean, be careful the way it works as at any give point of time it could turn into words.