The only real security in life lies in relishing life's insecurity.
Problems do not go away. They must be worked through or else they remain, forever a barrier to the growth and development of the spirit.
Doubt is often the beginning of wisdom.
Problems are the cutting edge that distinguishes between success and failure. Problems ... create our courage and wisdom.
It is only because of problems that we grow mentally and spiritually.
Consciousness is the foundation of all thinking; and thinking is the foundation of all consciousness.