The beginning of wisdom is the definition of terms.
The fear of the Lord is the beginning of wisdom, and knowledge of the Holy One is understanding.
The wise man does at once what the fool does finally.

The more I read, the more I acquire, the more certain I am that I know nothing.

The journey of a thousand miles begins with a single step.
The wise man does not lay up his own treasures. The more he gives to others, the more he has for his own.
The only true wisdom is in knowing you know nothing.

Honesty is the first chapter in the book of wisdom.
A man only becomes wise when he begins to calculate the approximate depth of his ignorance.
A wise man learns more from his enemies than a fool from his friends.
The fool doth think he is wise, but the wise man knows himself to be a fool.
The invariable mark of wisdom is to see the miraculous in the common.
The art of being wise is knowing what to overlook.
The wise man knows that he knows nothing, the fool thinks he knows all.
Wisdom begins in wonder.

It is what we know already that often prevents us from learning.
To attain knowledge, add things every day. To attain wisdom, remove things every day.