If I am fool, it is, at least, a doubting one; and I envy no one the certainty of his read more

If I am fool, it is, at least, a doubting one; and I envy no one the certainty of his self-approved wisdom.

The believer is happy; the doubter is wise.

The believer is happy; the doubter is wise.

Who never doubted, never half believed. Where doubt is, there truth is -- it is her shadow.

Who never doubted, never half believed. Where doubt is, there truth is -- it is her shadow.

To believe with certainty we must begin with doubting.

To believe with certainty we must begin with doubting.

The doubtful beam long nods from side to side.

The doubtful beam long nods from side to side.

I kept on digging the hole deeper and deeper looking for the
treasure chest until I finally lifted my read more

I kept on digging the hole deeper and deeper looking for the
treasure chest until I finally lifted my head, looked up and
realized that I had dug my own grave.

Doubt is part of all religion. All the religious thinkers were doubters.

Doubt is part of all religion. All the religious thinkers were doubters.

In all affairs it's a healthy thing now and then to hang a question mark on the things you have read more

In all affairs it's a healthy thing now and then to hang a question mark on the things you have long taken for granted.

Doubt is the father of invention.

Doubt is the father of invention.