One whose knowledge is confined to books and whose wealth is in the possession of others, can use neither his knowledge nor wealth when the need for them arises.
The earth is supported by the power of truth; it is the power of truth that makes the sun shine and the winds blow; indeed all things rest upon truth.
The biggest guru-mantra is: never share your secrets with anybody. It will destroy you.
Before you start some work, always ask yourself three questions - Why am I doing it, What the results might be and Will I be successful. Only when you think deeply and find satisfactory answers to these questions, go ahead.
The wise man should restrain his senses like the crane and accomplish his purpose with due knowledge of his place, time and ability.
Even if a snake is not poisonous, it should pretend to be venomous.