Health and safety is an evolving science. Or is it an art?Or is it an art? We may think that we have considered all the implications of a plan or process; this could go wrong, that could prove problematic, but what if we have overlooked something? Perhaps our risk assessment itself requires a risk assessment! And if we make too many allowances for the unknown and the unpredictable, perhaps nothing will ever be able to happen.If we eat too much, we put on weight. If we don't eat enough, we lose it. Ideally, therefore, we carefully measure every mouthful, count every calorie and strive to find the perfect balance. Only, unless you happen to find joy in dietary accountancy, it isn't much fun. Minor fluctuations in stable situations make them interesting. Better to rise to the odd challenge, even if this involves a small risk than to lead a life devoid of adventure and amusement.Many herbalists believe that nature is not just munificent but prescient. They say, 'If you fall ill, look to see which wild herbs are growing spontaneously near your home or along a journey you regularly take.' The chances are, they will have the healing properties you require and they will be fully established as plants because well, because the cosmos knew in advance that you would be needing them! Such a view of the world requires great faith.