Matthew 10:16 (NKJV)
"Behold, I send you out as sheep in the midst of wolves. Therefore be wise as serpents and harmless as doves.
When most people think of a genuine Christian, they usually have the idea of a weak-minded person. And this comes from biblical commands that describe how we are to be with words such as humble, meekness, and humility. We are told to turn the other cheek. People think that having faith like a little child implies that we are to leave our minds at the door when we enter the church.
Acts 19:8 (NKJV)
And he went into the synagogue and spoke boldly for three months, reasoning and persuading concerning the things of the kingdom of God.
Christianity is not a mindless religion. It is supremely logical and intellectually satisfying but at the same time God's ways are mysterious because His ways are higher than our ways.
Being wise, shrewd, persuasive, bold and intellectual are not mutually exclusive with being meek and humble and having faith like a little child. No, if you find someone who has all those traits, you will find someone whom you will really love, respect and want to be around. In fact, it sounds a lot like Jesus to me! I pray that others will see Jesus in me.