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Life is full of experiences, and the ability to make sensible decisions only comes when one is willing to change. According to the words of world leaders, one who refuses to adapt to the situation can never be wise.

On Teachers' Day, let these quotes by world leaders guide you.

Any lesson is incomplete without wise words from Mahatma Gandhi. He always advocated literacy and education. Learning is a lesson for a lifetime. Don't believe us? Read what he said, "Live as if you were to die tomorrow. Learn as if you were to live forever."

Money comes and goes, but your values make you. Having a healthy body and mind can go a long way. Billionaire investor Warren Buffett explains it beautifully, "The best investment you can make, is an investment in yourself… The more you learn, the more you’ll earn." (Image: AP)

Finding yourself isn't a difficult process, but requires a lot of hard work. Follow an aim in life, keep learning and have a determination to find your unique self. Go by Dr APJ Abdul Kalam's words - "Never stop fighting until you arrive at your destined place - that is, the unique you. Have an aim in life, continuously acquire knowledge, work hard, and have the perseverance to realise the great life."

What you learnt yesterday, may be outdated a few years from now. Hence, more than knowledge, the humility to accept 'I don't know everything' goes a long way. Greek philosopher Epictetus's words - "It is impossible for a man to learn what he thinks he already knows" - highlight that one cannot become whole if he can't accept change.

Author Paulo Coelho has a similar message. When he said, "Knowledge without transformation is not wisdom," he sent a message out in the world that a man can never attain wisdom if he is unwilling to change.

The Greek philosopher Socrates shared the same message, "The only true wisdom is in knowing you know nothing." Be humble and accept that knowing everything is not your job and the path to wisdom never ends.

Wisdom doesn't come easy. It takes years of trial and error to finally achieve it. Theoretical physicist Albert Einstein explained it best when he said, "Wisdom is not a product of schooling but of the lifelong attempt to acquire it."

If you are an aspiring entrepreneur or have just started, Microsoft founder Bill Gates's words will show you the path to great learning. He once said, "Your most unhappy customers are your greatest source of learning." The disappointed customers will show you the path to improvement.