Sterling W Sill's book, "The Power of Positive Thinking," is a timeless classic that provides invaluable advice for achieving success and happiness. Through his teachings, Sill encourages readers to adopt an optimistic outlook on life and recognize their own power to create positive change. He emphasizes the importance of cultivating a mindset that focuses on gratitude, self-confidence, resilience in the face of adversity, and faith in one’s ability to achieve anything they set out to do.

At its core lies the idea that positive thinking can be used as a tool for personal growth through recognizing our inner strengths while also acknowledging our weaknesses. According to Sill’s philosophy “Successful living begins with right thinking…You must think correctly before you can act correctly; therefore if you are going anywhere worthwhile it is important first of all that your thoughts be correct." This means focusing on what we have rather than what we don't have - finding joy in even small accomplishments or moments throughout each day - so as not become overwhelmed by negative emotions like fear or doubt which prevent us from taking action towards achieving goals. 

In addition , he stresses how critical it is develop an attitude based upon affirmation rather than criticism when communicating with others . By doing so ,we will foster healthy relationships built upon mutual respect instead dwelling on differences between people . Ultimately , this approach allows us cultivate meaningful connections both within ourselves and those around us . 

By following Sterling W Sills' advice from The Power Of Positive Thinking', individuals may find themselves better equipped handle challenges life throws at them while striving towards becoming their best selves possible.