TEACH TO OTHERS,WHEN YOU HAVE SOUND KNOWLEDGE.

teach to others when you have sound knowledge.

means  explain or teach to others when you have good  idea.you don’t have  knowledge do not teach,because  with out knowledge we can’t explain and we can’t clarify all doubts.then we face problems.so earn knowledge before teach.

this is from www.images-quotes.com 

A WILLFUL MAN HAVE CAPABILITY TO SOLVE THE PROBLEMS.

A willful man will have his way to solve the problems.

means a willful man can solve the  problems,because he can estimate the upcoming problems and prepare proper plans  to overcome any hurdles. he has a vision and positive thinking and use all the opportunities  in his way.