It is always a question of knowing and seeing, and not that of believing. The teaching of the Buddha is qualified as ehi-passika, inviting you to 'come and see', but not to come and believe.

As long as you are conscious of yourself, you can never concentrate on anything.

There is no unmoving mover behind the movement. It is only movement. It is not correct to say that life is moving, but life is movement itself. Life and movement are not two different things. In other words, there is no thinker behind the thought. Thought itself is the thinker. If you remove the thought, there is no thinker to be found.

All great work artistic, poetic, intellectual or spiritual is produced at those moments when creators forget themselves altogether and are free from self-consciousness.

If by the expression not practical you mean not easy, you are right. Definitely it is not easy. Yet it should be tried. You may say it is risky trying it. Surely it cannot be more risky than trying a nuclear war.

According to the Buddha's teaching the beginning of the life-stream of living beings is unthinkable. THe believer in the creation of life by God may be astonished at this reply. But if you were to ask him 'What is the beginning of God?' he would answer without hesitation 'God has no beginning', and he is not astonished at his own reply.